Basal temperature is not. The essence of the method of basal thermometry. How to make calculations correctly

Every woman has probably heard such a term as "basal temperature". What it is, everyone has their own concept, but most will say that this is an indicator that is needed to track ovulation when planning a pregnancy. In general terms, yes, but this topic needs to be more fully disclosed so that there are no white spots left in it. We will start with the definition, touch on the technique of measurement and plotting. In addition, I would like to consider how the basal temperature changes during pregnancy.

Basic knowledge

We will start from the very beginning, that is, with the definition of "basal temperature". What it is, now it will become clear. This is the temperature that is measured rectally. There are two points here that are important to consider. To obtain accurate and reliable information, measurements must be performed strictly at the same time and after a long rest. That is, the optimal time is considered to be at 6 o'clock in the morning, when you just woke up.

What are these indicators for? For hormonal analysis. Moreover, all changes due to biological factors and causes occur only locally, so putting a thermometer under the arm is pointless. There is one more thing to consider: if a person is overheated or sick, the basal temperature also changes. It is needless to add that this may cause data distortion.

It needs to be known

Why will you conduct research? By itself, performing a single measurement does not give anything. But the totality of data for several months allows you to get a fairly bright and clear picture. Another important point. By taking measurements, women achieve exactly one thing, they can clearly see how their menstrual cycle goes, when the egg matures and ovulation occurs.

But if you take hormonal contraceptives, then this technique stops working for the simple reason that the cycle is regulated by the hormones taken, and not at all by your own. Moreover, their action is aimed at ensuring that the eggs do not mature. Therefore, no matter how long you build charts, the basal temperature will always be the same. That this is completely uninformative, you have already guessed yourself.

Learning to measure temperature

Once again remembering the basic rules, you must complete the entire procedure early in the morning, without getting out of bed even for a thermometer. That is, we set an alarm clock within reach and, as soon as we open our eyes, we measure. Only in this case, the indicators can be considered informative. Once again, we emphasize that the body must be at rest. Do not stretch or sit up in bed, nor should you throw back the covers. Just bend your legs slightly and insert the tip of the thermometer into the anus. You need to lie still for about 5 minutes.

After that, lay it out on a pre-prepared napkin and you can safely fill up or get up. Basal temperature during the day is not measured for the simple reason that physical activity makes the indicators completely uninformative. Even if you build a graph based on the results of many months of measurements, you will not be able to see anything from it. So we digress a little. The result obtained must be immediately entered in a notebook, but it is better to immediately transfer it to a simple graph, where one axis is the date, and the second is BT.

Measurements during the day

Sometimes, wanting to get the most reliable data, a woman begins to take measurements every two hours. This not only does not add information content, but also confuses. It turns out a huge array of data, which is more difficult to process, since the indicators contradict each other. Depending on physical activity, emotional state, food intake and other environmental factors, the numbers will change constantly. It is almost impossible to find the optimal time for measurement during the day.

Plotting

Most often, women begin to take measurements in order to track ovulation and not guard the onset of pregnancy. The basal temperature during early pregnancy really changes a lot. As we said above, you cannot say anything until you have accumulated information for several months. Only then will you be able to visually assess the cyclicity and determine which of the peaks accounts for ovulation. Based on the results, you can calculate the days of ovulation and determine the period of greatest fertility.

First of all, this information is important for couples who are planning a child. This method is also used by those who want to avoid unwanted pregnancy. However, doctors recommend in this case to additionally use other methods of contraception. The basal temperature during pregnancy in the early stages rises sharply, after which it stays at about 37.2 for some time.

Technical subtleties

So let's get down to practice. You will need a checkered notebook, a pen and a thermometer, preferably digital, not mercury, so as not to be afraid to accidentally break it when you wake up. Prepare the coordinate axes in advance. The number of the day of the cycle is plotted on the horizontal axis. There are some nuances here. The countdown should be carried out from the first day of menstruation. Taking it as a starting point, you will create the most accurate graph. On one axis, you will be posting your measurements daily. It is important to maintain an accuracy of up to 0.1 degrees.

What allows you to see the graph

Basal temperature readings should be recorded daily. Miss just one day, and reliable information will no longer work. In a couple of months it will be necessary to reliably determine:

Graph fluctuations are normal

It is important to be able not only to build, but also to read the chart correctly. To do this, it is not at all necessary to have a medical education, it is enough to carefully familiarize yourself with this material. Once again, we draw your attention to the fact that we are talking about the indicators of a healthy woman, any disease can distort information.

From the first day of the cycle, BBT goes down. From an indicator of 37.2, it reaches 36.5. You can easily see these fluctuations on your monthly chart. Around the middle of the cycle, the egg matures and leaves. It is at this time that the temperature slowly rises to 37.1-37.3 degrees for 3-4 days. It is this long, smooth rise that you will see on the vertical axis.

After that comes the most stable period, the line goes at the same level throughout the second half of the cycle. The indicators remain at the level of 37.2-37.4. The next changes are expected 2-3 days before the start of menstruation. Now you fix the indicators that were at the beginning of the cycle (36.9). The basal temperature during early pregnancy remains stably high, this characteristic decrease is not observed.

Waiting for a miracle

Let's once again dwell on how to determine that you are really expecting a baby. Recall that we are talking about those periods when only the most sensitive tests can correctly diagnose conception. Basal temperature at an early stage, when life is just beginning to emerge in you, noticeably changes its character. Indicators that should have been declining will remain at the same level as throughout the second half of the cycle. The temperature will remain at 37.2 throughout the entire period of the expected menstruation.

Pathological basal temperature

However, it also happens that you can take completely different indicators for a successful conception. That is why we say that even the best schedule cannot replace competent specialist advice. The average BT should be kept at 37.2 degrees. In some cases, it is permissible to increase it to the level of 38. However, this is already the upper limit of the norm. If BBT has reached such indicators or risen above, you should immediately consult a doctor.

A high basal temperature before menstruation can not only talk about conception, but also suggest the presence of various kinds of inflammatory diseases. But it's not worth diagnosing yourself. Better see a doctor. Be aware of the possibility that you may simply be measuring incorrectly, resulting in unreliable results.

How to measure the temperature during pregnancy

Even after the interesting position of the woman has been confirmed, the doctor may recommend that you continue to conduct your observations. Sometimes this is done because, based on the examination, the gynecologist can only assume the presence of pregnancy, and additional data are required to confirm the diagnosis.

Basal temperature in the early stages is very indicative. Analyzing the table, you can see the following patterns:

• The increase in indicators lasts at least 3 days longer than on standard charts. This is the time when a high temperature persists for several days after ovulation.
• If, by reading the graph, you see that the corpus luteum phase lasts more than 18 days.
• In the standard, two-phase chart, you see the third peak.

From the point of view of diagnosing BT, the first 2 weeks of pregnancy are reliable. After that, the hormonal background changes. Therefore, the basal temperature after the first delay will not give much to the patient herself. However, if the doctor asks to continue monitoring, he should be listened to.

Development of events

These are already quite reliable signs of pregnancy. You will soon notice more obvious symptoms that are familiar to every woman. What basal temperature should be in the first trimester? To answer this question, you need to delve a little into physiology.

The prepared reader is well aware of the reasons for the increase in BT. Hormones are to blame for this, which are designed to prepare the walls of the uterus and fix the fertilized egg. When pregnancy occurs, hormones continue to be produced in large quantities, so the first three months the graph will show an almost flat line, at the level of 37.1-37.3. After about 20 weeks of pregnancy, it begins to decline.

Possible reasons for the decrease in BT

Low indicators are considered if their value is below 37 degrees. This may mean that there are complications during pregnancy. Therefore, in this case, you need to take measurements the next day, and if the indicators are low again, then consult a doctor. In addition, it is recommended to take additional measurements during the day and compare them with the morning readings.

If doctors diagnose a low level of progesterone, then the woman is hospitalized for preservation. Sometimes a decrease in BBT indicates the fading of the fetus. In this case, the corpus luteum ceases to perform its functions. However, it is impossible to make a diagnosis only on the basis of the schedule, since sometimes, even in the presence of a frozen pregnancy, the temperature remains high. This once again emphasizes the fact that any data must be analyzed by a specialist, checking them with the results of an examination and laboratory tests.

Instead of a conclusion

If you want to get to know your body better and understand the processes that take place in it, then we advise every woman to start measuring BBT. Only 4-5 months of regular measurements will give you the richest material on the basis of which you can plan a future pregnancy or avoid it more effectively.

By correctly reading the basal temperature chart during pregnancy, even before the delay in menstruation, the expectant mother can track its onset. You also need to know what factors can distort the result, so as not to take them for deviations in the development of pregnancy.

Characteristic indicators at different stages of the cycle

Basal temperature, as one of the methods for determining a day favorable for conception, is currently widely used, although the measurement does not give a 100% guarantee and has a sufficient number of shortcomings. When planning a pregnancy, you need to start preparing in advance and, for comparison, take readings of at least 3-4 cycles, building a curve connecting daily temperature points.

Before talking about building a digital axis, let's figure out what normal values ​​​​should be displayed on it:

End of the menstrual cycle

• At the end of menstrual bleeding in the first period of the cyclic process, the thermometer shows approximately 36.2-36.5 ° C. It is at such marks on the thermometer that the maturation of the egg occurs with the participation of estrogen, which controls this process.

Temperature before and after ovulation

• On the eve of ovulation, there is a slight decrease in temperature by a few tenths of a degree, and then an increase to 37 ° C and above. This indicates the release of the cell and its movement to meet the sperm in the fallopian tube.

An example of a basal temperature chart during pregnancy before a delay

• After the fusion of the germ cells, the graph of the basal temperature during pregnancy before the delay (photo examples confirm this), stably shows slight fluctuations between 37 and 37.5 ° C throughout the pregnancy.

• If fertilization has not occurred, a few days before menstruation, a gradual decrease in temperature begins and from the first critical day it becomes 36.8 ° C and lower.

Diagnosis of pregnancy according to the schedule

Elevated temperature marks on the curve are the first indirect sign of an accomplished conception, then it will be confirmed by nausea, pain in the mammary glands, mood changes, taste preferences, etc., and the final line will be put by two identical strips on the test.

Graph of basal temperature during pregnancy before delay - 36.9 ° C

The very moment of fertilization passes unnoticed for the woman, but the implantation of the embryo to the endometrium can be fixed. In this case, the graph of basal temperature during pregnancy before the delay is 36.9 ° C or slightly less on days 5-7 after ovulation. Approximately such a period of time is necessary for the fetal egg to reach the uterus and begin to penetrate into its wall.

At this point, slight pulling pains in the lower abdomen may be felt, and there may be slight bloody discharge from the vagina, as a symptom of fetal attachment. The decrease will be visible for only a day, and then the curve will return to the values ​​that were before the sinking and will no longer deviate.

Signs that distort indicators

We examined the normal course of pregnancy in the early stages and its inherent adequate values. But sometimes the schedule of basal temperature during pregnancy before the delay, examples have deviations, both upward and downward temperature values. They are caused by certain reasons related to the influence of internal and external factors on the woman's body.

When the shift in indicators happens once, it can be attributed to errors in temperature measurement that occurred due to a completely understandable reason:

• Insomnia;
• Short-term sleep, less than 6 hours;
• Cold;
• Sexual intercourse 3-4 hours before measurement;
• Excessive physical activity the day before;
• Stress.

Dangerous sinking in the basal temperature chart during pregnancy

Ectopic pregnancy

If an increase of 37.5-38 ° C is observed and lasts for several days, an inflammatory process in the female reproductive system can be suspected. It can be an infectious disease, and possibly an ectopic pregnancy. Attaching a fetal egg in the wrong place can cause a peculiar reaction with temperature jumps up and down and the curve turns out to be somewhat wrong with atypical sinking.

Missed pregnancy or miscarriage

Decreasing rates below 36.9°C with confidence in conception is also a cause for concern. In this case, a frozen pregnancy or a threatened miscarriage is suspected. This state of temperature values ​​\u200b\u200bis explained by a decrease in the level of progesterone, which occurs due to the death of the fetus. It is no longer necessary to support the development of the embryo, the corpus luteum gradually reduces its production, the hormone content in the blood drops. He is no longer able to maintain elevated basal temperature numbers, and it drops.

Chart of basal temperature during pregnancy before delay (video)

In this video, an obstetrician-gynecologist talks about how to correctly measure basal temperature during pregnancy before a delay.

To make sure that you are correctly scheduling your basal temperature during pregnancy before a delay, video materials and examples of girls on the forums will help get rid of doubts about the sequence of actions and deal with temperature values.

Conclusion

When compiling the temperature curve, one should not forget that for each organism only its inherent values ​​\u200b\u200bare characteristic, therefore it is not the numbers themselves that are important, but rather the difference between the first and second phases of the cycle, which should be at least 0.4 ° C.

After fertilization, all organs and systems of the female body undergo serious changes. Physiological transformations are felt already at the initial stage of pregnancy. A key indicator of the girl's health at this time is the basal temperature, changes in which may indicate pathologies or abnormalities.

What is basal body temperature

This is an indicator of temperature in conditions of maximum rest of the body. BBT is measured during pregnancy rectally and depends on the hormone progesterone secreted by the female genital organs, the volume of which often changes during the monthly cycle. By determining the basal temperature, you can find out the time of the beginning and end of ovulation (for planning fertilization), as well as detect the onset of pregnancy. BT allows you to find out if there are inflammations or other pathological processes in the female body.

The norm of BT after conception

In order for a fertilized egg to attach to the uterine wall, certain conditions are necessary. The female body creates a favorable environment for this with the help of progesterone, which is produced in increased volumes during ovulation. With the help of the hormone, the uterus becomes able to accept a fertilized egg and allow the placenta to develop. This explains the increase in BBT in early pregnancy. As a rule, the value of the thermometer shows 37-37.3 ° C.

If the basal temperature in the early stages of pregnancy remains within the specified limits, this indicates that the development of the fetus is normal, without complications. In some women, the indicator may deviate up to 38 degrees, which is due to the individual characteristics of the body, however, to make sure that there are no diseases, you should visit a doctor.

Body temperature during early pregnancy should be measured every morning at the same time. This is the only way to be sure of the accuracy of the indicators: no external factors have yet affected the body. After eating, physical exertion (even minimal), experiencing various emotions, the basal temperature undergoes changes. Throughout the day, BT is constantly changing under the influence of these factors, so it is pointless to measure it during the day or in the evening.

Causes of deviation from the norm

Doctors diagnose high basal temperature in early pregnancy and in some other cases. The indicator, for example, can increase with an inflammatory process in the female genitourinary system. To verify the onset of pregnancy, it is necessary to track the duration of the delay in menstruation and conduct a test. After confirmation of fertilization, the doctor advises the girl to periodically monitor BT in order to eliminate them in time if there are pathological processes.

High basal temperature in pregnant women sometimes indicates the presence of inflammation in the organs of the reproductive system. Sometimes BBT rises during an ectopic pregnancy: despite the abnormal location of the egg, it develops, causing increased production of progesterone by the body. Signs of abnormalities at elevated temperature are pain with localization in the lower part of the peritoneum and brownish vaginal discharge.

A possible cause of increased BBT in early pregnancy is a hormone imbalance that is associated with estrogen secretion. Deficiency of this hormone in the female body can lead to abortion and infertility. A low basal body temperature (below 36.9 °C) followed by an increase also indicates possible pathologies. A low BBT may indicate inflammation of the uterine endometrium.

How to measure basal temperature to determine pregnancy

In the early stages and after BT, the sutra is measured before getting out of bed, when the female body is in the minimum activity mode. In this case, the thermometer is immersed 2 cm inside the anus or vagina and held there for 3-5 minutes. Procedure rules:

• one thermometer cannot be inserted into different holes to avoid infection of the perineum;
• it is better to use a mercury thermometer, since electronic devices do not show accurate results;
• measurement should be taken at about the same time every day;
• carry out the procedure while lying on your back or stomach (before that, it is forbidden to get up, as blood flow to the peritoneum and small pelvis increases);
• it is allowed to measure basal temperature in early pregnancy after at least five hours of sleep;
• during the control of BT, one should not have sexual intimacy (the period between the act and the time when the temperature can be determined should be at least 12 hours);
• it is forbidden to take any drugs;
• do not have breakfast before measuring BBT;
• the procedure can be carried out only in a healthy state (even a mild runny nose can affect the value of the thermometer);
• the minimum duration of BT tracking is 3-4 cycles (a shorter period does not allow the doctor to draw conclusions about the patient's health).

BT Record Table Compilation Guide

The basal temperature during early pregnancy helps to timely track the changes taking place in the body. For convenience, women create a special schedule where they enter data on BT. At the same time, the date of temperature measurement, the day of the monthly cycle, the thermometer readings and notes are indicated. The last column may contain factors that could affect BT (intestinal disorders, stress, poor sleep, etc.).

How to make a table for recording BT:

• draw two axes (X and Y) on a piece of paper in a cell, while the first one will indicate the day of the cycle, and the second - the BT indicator;
• plot the measurement data and connect the points to form a curved line;
• draw an overlapping line over the six BBT values ​​in the initial phase of the menstrual cycle preceding ovulation (the first five days of the cycle and days with a controversial BBT indicator are not taken into account);
• on the compiled temperature curve, two days after ovulation, draw the corresponding line, highlighting it in a different color.

How to decipher the basal temperature chart during pregnancy

The BT scheme conditionally divides the cycle into 2 parts. The first phase is the part of the schedule before the ovulation mark, the second phase is after it and lasts longer. How long can it last? According to doctors, the best option is 2 weeks, but a period of 12 to 16 days is also considered the norm. The duration of the menstrual cycle in different representatives of the weaker sex varies and depends on the duration of the initial phase.

If, in the case of regular measurement of BBT indicators during the first trimester of pregnancy and longer, you notice that the duration of the second phase is less than 10 days, there is a good reason to see a doctor. In addition, it is worth taking into account the difference in the average temperature values ​​during both phases. The basal temperature in early pregnancy should normally differ in the first and second parts of the menstrual cycle by no more than 0.4 ° C. A different difference indicates the presence of a hormonal imbalance.

Video: what should be the rectal temperature during pregnancy

Seeing two long-awaited strips on the test, you begin to carefully monitor any changes that occur in the body.

The basal temperature during pregnancy in the early stages responds to the smallest fluctuations in the hormonal system and allows you to calculate deviations from the norm and promptly seek help from a antenatal clinic.

What is basal body temperature

• The basal or basic temperature (hereinafter referred to as BT) is the one that is practically not affected by the external environment;
• You can get its values ​​\u200b\u200bin the morning hours, without getting out of bed, after a full night's sleep;
• Measurements are taken using a thermometer placed in the mouth, vagina or rectum;
• BBT values ​​are influenced by hormones such as estrogen and progesterone, the level of which varies according to the days of the menstrual cycle.

Know! Obstetrician-gynecologists consider BT an indicator of the health of the female reproductive system. Comparison of schedules for several cycles can reveal hormonal disorders, the period of ovulation, as well as inflammatory processes.

Even at the stage of planning a child, BBT values ​​will help determine the favorable period for conception without the use of expensive tests and ultrasound diagnostics. The only caveat is the strict observance of all norms during the measurements.

Why can you trust your basal body temperature?

The menstrual period consists of two phases.

1. During the transition from one phase to another, ovulation is observed. The whole essence of the method is to build a graph based on daily BT readings;
2. The first half of the cycle is characterized by low numbers, and the second half is high, due to the influence of progesterone.

Ovulation on the chart looks like a sharp drop.

The value of BBT about a day before the onset of ovulation drops rapidly, and the next day it also rises sharply. Evidence of the imminent onset of menstruation are reduced values ​​of BT, but during fertilization in the second phase, they will be steadily increased.

You can use the basal temperature measurement method if:

• trying to get pregnant lasts longer than a year;
• it is necessary to identify violations in the work of sex hormones;
• you need to predict a good time for conception;
• it is necessary to determine the presence of pregnancy before the fact of delayed menstrual bleeding.

How to determine pregnancy by basal temperature?

The entire menstrual period can be tracked on the basal temperature chart. During pregnancy, the picture is significantly different from that which can be seen during a normal cycle.

1. The very first phase of the female period is follicular (hypothermic). At this time, the formation of the follicle occurs, inside which the egg matures. The first phase is characterized by increased production of estrogen due to the increased work of the ovaries;

Favorable values ​​of BT are from 36.1 to 36.8 degrees. Values ​​at the upper end of the range are usually accompanied by a lack of estrogen. In such cases, doctors recommend appropriate hormone therapy.

1. The moment of ovulation. The follicle ruptures under the action of LH (luteinizing hormone) and the egg is released, and a hormonal surge occurs. At this stage, BT values ​​increase sharply to 37.0-37.7 degrees;
2. The last phase is luteal (hyperthermic). Instead of a bursting follicle, a corpus luteum begins to form, which is a source of progesterone.

• In the case of fertilization of the egg (during the implantation, the BT decreases) - it enters the uterus. At the same time, the corpus luteum continues to grow, releasing hormones that allow you to maintain pregnancy and prevent uterine contractions;

It is these hormones that make the BBT values ​​stay at the upper limits. The corpus luteum functions until the complete formation of the placenta.

• Favorable values ​​of BT are above 37 degrees;
• If conception does not occur, the corpus luteum collapses and hormone levels drop. BBT values ​​also decrease and menstrual bleeding occurs.

Temperature is below ovulation

Usually, the value of basal temperature during early pregnancy is 37.1-37.3 degrees.

It happens a little lower, within 36.9 degrees.

You can find this out by recording your basal body temperatures over several cycles.

The only constant sign of the possible fact of pregnancy is the absence of a lower basal temperature after the release of the egg from the ovary.

Features of "pregnant" and "non-pregnant" charts

To understand which basal temperature is characteristic of the body during pregnancy, and which one - with various pathologies, you need to pay attention to the main characteristics of the graphs.

"Pregnant" schedule:

1. low BBT in the follicular phase of the cycle;
2. ovulation is clearly identified (a sharp jump in BBT up);
3. increased BT in the luteal phase of the cycle;
4. somewhere on the 21st day, the values ​​​​of BT decrease noticeably (implantation of the egg occurs) and then the temperature rises again;
5. there is a third phase of the cycle - gestational - with a BBT value equal to or greater than ovulatory.

Normal "non-pregnant" schedule:

• in the first phase, BT values ​​​​are below 37 degrees;
• immediately after the ovulation phase, BBT begins to rise and continues to be at the level of 37 degrees almost until the end of the second phase;
• a few days before the onset of menstrual bleeding, the value of BT drops sharply.

The anovulatory schedule is characterized by chaotic bursts of BBT throughout the cycle. Such periods occur in women up to three times a year.

How to measure the temperature to determine pregnancy

The most accurate readings will be with the rectal insertion of a thermometer. In this case, the thermometer can be either electronic or mercury, depending on personal preferences. The following are the basic rules for how to measure basal body temperature to determine pregnancy:

1. Measurement of basal temperature when planning pregnancy should be done daily in the morning at a certain time after sleep, lasting more than six hours. Do not leave bed soon after waking up or sit up abruptly;

In addition, frequent walking during the night rest distorts the research data.

1. In the daytime and evening hours, there are quite strong fluctuations in BBT due to stress, increased activity or banal fatigue. It is not necessary to double-check the morning measurements in the afternoon and evening, as this is not informative;
2. With a mercury thermometer, the temperature is measured within 6-10 minutes, with an electronic thermometer - from 2 to 3 minutes or until a sound signal;
3. For clarity, it is best to start taking measurements and build a graph from the day of the onset of menstruation. This will allow you to see the temperature difference during the transition from one phase of the cycle to another and evaluate the hormonal background;
4. For the convenience of taking measurements, you can use a regular paper sheet, a printed template, or applications that automatically build graphs based on the entered data.

Note. The following factors influence the BT indicators:

• alcohol;
• sex a few hours before the measurement procedure;
• stress;
• infectious diseases;
• too warm bed, for example, from a heating pad;
• hypothermia of the lower extremities.

If any of the above factors took place, it is worth making a note about it.

What indicators allow us to conclude that the pregnancy did not take place?

High basal temperature, which persist for a long time, with a possible pregnancy, until confirmation of the fact of the delay, unfortunately, is not always a sign of successful conception.

In some cases, such a change may be associated with inflammatory processes in the appendages, and sometimes indicate complications during the gestational period.

Important! It is worth paying attention that there is no need to start panicking when abnormalities are found, since each organism is unique. In case of any doubt, it is better to consult a specialist for an accurate diagnosis.

BT at risk of miscarriage

The threat of miscarriage is associated with insufficient production of the hormone progesterone, which supports pregnancy. This happens when there are problems with the hormonal background and an incorrectly functioning corpus luteum, which normally appears instead of the follicle.

Know! With this pathology, the values ​​\u200b\u200bdo not exceed 37 degrees.

Thus, if the basal temperature during pregnancy is 36.8 or one tenth of a degree higher, you should pay attention to this and try to understand the reasons for such changes.

BT in missed pregnancy

If the development of the embryo stops, the gland formed at the site of the follicle begins to break down, and the level of progesterone, therefore, falls. This leads to a decrease in BT values ​​\u200b\u200bto 36.4 - 36.9 degrees.

There are times when, when the embryo freezes, the temperature continues to be kept at a fairly high level. True, it happens when a lower temperature is not at all an indicator of fading. You should always listen to yourself and your inner state.

BT in ectopic pregnancy

Important! In this case, the production of progesterone by the corpus luteum does not stop, as in the normal course of pregnancy. It is impossible to draw conclusions on the basis of BT values ​​in this case.

In the second and third trimesters, it does not play a significant role. It is important to remember that accuracy in measurements is necessary, as any deviations affect the interpretation of the results.

Ask questions about the topic of the article!

Basal temperature (BT) is a term that allows a woman to control the processes occurring in her body. This temperature is a signal of the onset of pregnancy, and during gestation, its changes can also be symptoms of various phenomena. So, let's figure out what BT is and how it changes during pregnancy.

Briefly about basal temperature

Measurement of BBT is a simple but unique method of monitoring changes at the hormonal and cellular levels in a woman's body. It is measured in the rectum or in the mouth in the morning without getting out of bed. Basal temperature indicators directly depend on the period of a woman's cycle. The BBT of a healthy lady never falls below 36.2°C, never rises above 37.2°C. In the pre-ovulatory and premenstrual phases, it usually drops to 36.2-36.5 ° C, and during ovulation it rises to 36.9-37.1 ° C. It is this feature of the increase in temperature that women use when planning a pregnancy or, conversely, protecting themselves from conception.

At conception, the basal temperature rises to 37.1-37.3 ° C and remains at this level. If this indicator of basal temperature does not fall for 18 days, then the probability of pregnancy is high. Gynecologists advise women in such cases to take a pregnancy test even when menstruation has begun. An increase in BT in a woman's body causes the pregnancy hormone -.

Changes in BBT during pregnancy

The normal basal temperature during pregnancy is 37.1-37.3 degrees Celsius. Sometimes it can be a little higher, around 38 degrees, and it depends on the individual characteristics of the woman. An increase in BBT to 38 and above is normal if the body temperature is even slightly higher. Such a condition may be a signal of a cold or other inflammatory process, infection. In the event of an increase in BBT, a woman should definitely consult a doctor and not take any measures on her own. The main thing is not to be nervous, because it happens that you just measured the BBT incorrectly. It is worth considering that even after sexual intercourse, mild stress (bad, anxious sleep at night), basal body temperature may increase. That is why doctors recommend measuring it at rest in bed in the morning.

Sometimes basal body temperature drops during pregnancy. Doctors state that the reason for this may be the insufficiency of sex hormones. If at the same time, pain in the lower abdomen is still observed, then you should immediately contact your doctor.

BT in missed and ectopic pregnancies

There is an opinion among women that when an ectopic pregnancy occurs, the basal temperature does not increase, that is, it remains at the level of the premenstrual cycle. But it's not. With an ectopic pregnancy, progesterone is also produced, which affects the increase in basal body temperature. An increase in temperature above 37 during the period of ovulation and maintaining it at this level will not yet indicate that the pregnancy is normal, that is, uterine.

Women are interested in how the basal temperature changes during a frozen pregnancy. In this case, it drops to 37.0°C and below. This indicator is a symptom of anxiety and the need to conduct diagnostics in a medical facility.

And what should be the BT of a woman when pregnancy has come, and there is no delay in menstruation yet? During this period, the temperature should be kept at 37-37.3 degrees Celsius.

No matter how your basal temperature changes, always try to remain calm. You have a doctor, relatives and friends who will always help with advice and moral support.

Specially for Elena TOLOCHIK