Many changes occur in the body. The speed of some is extremely low. Others repeat regularly very quickly. These processes include the menstrual cycle. A clear confirmation of its constant variability is the basal temperature after ovulation and before its onset. It is produced by internal organs. To measure it, it is necessary to exclude the heat generated by the muscles during contraction.
Rules for conducting thermometry:
- Use one thermometer for all measurements.
- Do not change the location when repeating thermometry.
- Record your basal temperature after sleep (4-6 hours).
- Record readings without delay.
- Do not consume alcohol or hormonal drugs, including contraceptives, during the entire period of monitoring basal temperature.
- The thermometer should be accessible without getting out of bed.
If these recommendations are ignored, the result of the thermometry performed cannot be used for diagnostic purposes.
Features of curve change
The basal temperature in the vagina in the first half of menstruation, before ovulation, does not change, usually does not exceed 36.40C - 36.80C. This stage is called follicular, its duration depends on the woman’s health. After the release of the egg, the temperature curve rises to 37 0C-37.20C. From the moment of ovulation until the start of a new monthly cycle, the luteal phase lasts, the duration of which is 12-14 days.
If the basal temperature in the luteal phase first rose and then decreased by the end of 2 weeks, this means that the menstrual cycle ends without results. Conception can be assumed if the slight fever does not decrease by the end of the second week and remains within 37.20C.
Measurement rules
Basal temperature can be determined using a regular mercury thermometer, usually rectally (in the rectum). Measurement by oral or vaginal method is allowed. It is recommended to take measurements even during menstrual flow.
In order to evaluate the data obtained, the results should be recorded, as well as a graph should be drawn up, according to which, after the temperature line rises, you can understand that ovulation has occurred. Graphically, only two phases can be displayed - before (estrogen dominates) and after (progesterone dominates) ovulation. It is advisable to use one thermometer.
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The measurement time is 5-7 minutes. It is important to reset the mercury thermometer in the evening to avoid unnecessary movements in the morning.
Signs of pregnancy
Based on changes in the temperature graph, one can conclude whether conception has occurred. The onset of pregnancy is indicated by a basal temperature of 37 0C. An increase in the graph curve is caused by the production of progesterone, which the body actively produces after conception.
Progesterone is produced after ovulation, preparing a woman for impending conception. If the egg is not fertilized, progesterone production stops. If conception occurs, progesterone is actively released, creating conditions for the attachment of a fertilized egg to the wall of the uterus, the basal temperature is maintained at 37.1 ± 0.1 0C.
Implantation retraction, reflected on the graph, indirectly confirms the successful conception. Basal temperature after conception drops to an average of 36.7 0C.
Implantation retraction occurs 7-10 days after ovulation. A sharp drop in the graph by 0.3-0.4 0C occurs, presumably, as a result of a sharp increase in the level of estrogen hormones, which upsets the balance of estrogen and progesterone.
Restoring the balance of hormones leads to an increase in the curve on the graph. This position lasts for 16 weeks. After this period, progesterone production stops.
What to pay attention to
Having decided to regularly measure basal temperature, a woman should take into account many small but important nuances:
- the same thermometer should be used throughout the entire observation period;
- temperature must be measured in one way;
- ideal if measurements begin on the first day of menstruation;
- if relocations, business trips, vacations are expected, the measurements will not be truly objective;
- any disease disrupts basal temperature;
- significant doses of medications can affect basal temperature;
- It is strictly not recommended to drink alcohol during the observation period.
Features of graph interpretation
Based on the temperature chart, you can judge how well the pregnancy is progressing. If after conception the basal temperature drops below 37.20C, this may mean that the fetus is not developing, this is observed with a frozen pregnancy.
A decrease in the curve on the graph indicates hormonal instability, and if you notice this sign in yourself, you should definitely consult a doctor. An increased basal temperature does not always serve as an accurate criterion; a change in the schedule can be caused by:
- inflammatory disease of the female genital organs;
- viral infection, cold;
- drinking alcohol the night before;
- too active sexual intercourse the previous night;
- incorrect measurement - after morning exercises, shower.
Pregnancy can be assumed if there is a sharp decrease in the temperature curve on the graph after ovulation. This change is called implantation retraction, and it is not always noted during pregnancy.
This feature of the basal temperature chart is observed on average in 25% of women who become pregnant. At the same time, in 10% of women, basal temperature may decrease temporarily even in the absence of pregnancy.
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Influencing factors
What reason can lead to temperature fluctuations? Changes occur in a woman’s body under the influence of various factors, including external factors. Basal temperature can change after nervous strain, as well as any physical conditions, for example, intestinal disorders, sexual intercourse, lack of sleep, use of a heating pad, etc. Temperature fluctuations are affected by alcohol intake. That is why, under the chart opposite the corresponding day, it is necessary to additionally note all minor factors that influence the distortion of the results.
If the readings on the thermometer are between the numbers, then you should select the lowest value.
Utrozhestan when planning pregnancy
Discussion: 33 comments
- Inna:
04/23/2018 at 11:40Hello! If the rectal temperature in the morning is 36.5, and in the afternoon the body temperature is 37, can we assume that ovulation has occurred and is pregnancy possible?
Answer
- Irina:
04/26/2018 at 07:14
I ovulated on April 9 and on the same day I had sexual intercourse with my husband, measured b.t. mark 37 4 days late, can I be pregnant?
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Yana:
04/29/2018 at 20:29
Hello Irina! Quite possible.
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05/11/2018 at 13:39
Hello! I had a pa during ovulation! A week later I measured my basal temperature to 37.5! What can you do? Isn't the temperature too high?
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- Yana:
05/13/2018 at 14:24
Hello, Olya! There are a number of factors that affect the increase in basal temperature, for example: lack of sleep, taking medications or a cold.
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06/08/2018 at 19:39
My boyfriend and I had coitus interruptus. [Censorship]… the second act has begun. On this day I am ovulating. What is the probability of getting pregnant?
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- Yana:
06/09/2018 at 14:55
Hello, Alina! The likelihood of becoming pregnant is especially high if, during the second sexual intercourse, ejaculation occurs in the corresponding reproductive organs. It is also important that your egg is fertilized during ovulation, when it travels down the fallopian tube to the uterus.
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06/27/2018 at 00:08
Hello, on what day after ovulation should you measure your BBT? PA was at ovulation, the next day in the morning I measured BT 36.6, does this mean that conception did not occur?
Answer
- Yana (specialist):
06/27/2018 at 17:44
Hello Anisat! The process of conception takes time, start measuring BT regularly from the beginning of the cycle and at the same time (making notes in your diary). If the temperature rises by an average of 0.4 degrees during ovulation and after it (several days), then this is a sign of pregnancy.
Answer
08/18/2018 at 20:20
Good evening! BT usually in the fluoride phase did not rise above 36.8, this cycle on Utrozhestan 100 twice a day BT 37.1 - is it because of the pills or is there a chance that this is pregnancy?
Answer
- Yana (specialist):
08/20/2018 at 20:50
Good evening! There is a chance that this is pregnancy.
Answer
08/29/2018 at 15:37
Hello! The critical days were from August 12 to 17. Sexual intercourse was unprotected. Today it turns out that we have gone for 5 days. Since August 27, the body temperature began to stay at 37.37.1, the lower abdomen is swollen and tight. Tell me, please, could this be pregnancy? Thank you in advance for your response.
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- Yana (specialist):
08/29/2018 at 18:33
Hello Anna! Based on the symptoms you described, it looks like yes. This possibility exists if conception occurred during your ovulation.
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10.24.2018 at 17:53
Hello! Please tell me, is it possible to get pregnant while being treated with dystreptase?
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- Yana (specialist):
10.28.2018 at 19:27
Hello Nina! It is better not to use if you want to conceive a child, as use is contraindicated during pregnancy.
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10/29/2018 at 04:20
Hello. After ovulation on day 4 BT -37.2, on days 5.6 -37.1, can this indicate that there is pregnancy? Or is it too early to draw conclusions?
Answer
- Yana (specialist):
10.29.2018 at 20:06
Hello, Ekaterina! It is quite possible that conception has occurred. If on day 7 it is also 37.1, then most likely you are pregnant! In that case, I congratulate you!
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10/31/2018 at 02:31
Hello, If BT on days 5 and 6 was 37.1, and on day 8 it dropped to 36.9, then pregnancy can definitely be ruled out?
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- Yana (specialist):
10/31/2018 at 21:35
Hello, Ekaterina. No, don’t rush to rule it out! Perhaps the embryo has already implanted in the uterine cavity, and your condition associated with increased progesterone has stabilized.
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10/31/2018 at 20:20
Hello, I am 9 days after ovulation, my temperature is 37.6, is pregnancy possible?
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- Yana (specialist):
10/31/2018 at 21:30
Hello, Olesya! Yes, it is possible, but if you feel worsening, consult a doctor immediately.
Answer
Catherine:
11/01/2018 at 03:45
Sorry, I just realized that I wrote the temperature incorrectly. 36.9 was on the 9th day after ovulation. Is pregnancy ruled out in this case? On day 10 it showed 37.1, but I got up two hours before taking the temperature.
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Yana (specialist):
04.11.2018 at 10:23
Yes, in this case the data will not be accurate, but the possibility cannot be completely excluded. Therefore, be attentive to yourself!
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11/21/2018 at 17:55
If BT at 13 DPO remains at 37, then in this case there could be pregnancy?
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- Yana (specialist):
21.11.2018 at 20:13
Yes, the very increase in temperature is already a signal; if the measurements are taken correctly, pregnancy is possible. Be attentive to yourself until you know the result.
Answer
11/27/2018 at 10:37 am
Hello Yana. Was unprotected before ovulation. Is pregnancy possible if BT is 36.8, cycle is 25 days and how to measure BT correctly? In a horizontal position? Or lying on your left side with your knees bent?
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- Yana (specialist):
28.11.2018 at 21:27
Hello Maria! Measure in a horizontal position, in the morning without getting out of bed, immediately after waking up, eyes closed.
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28.11.2018 at 19:42
Hello! After ovulation for about 9 days the temperature was 37, they thought they had conceived, but on the tenth day it dropped to 36.7. I am 42 years old, please advise. Thank you!
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- Yana (specialist):
28.11.2018 at 21:19
Hello! This may indicate a lack of result, that is, the egg was not fertilized. Good luck!
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12/19/2018 at 06:38
Good morning. Please tell me, ovulation was on December 16th. I didn’t measure my BT for a couple of days. Since Tuesday I have been taking Duphaston 10 mg twice a day. Today is the 19th, BT 36.9—is it because of the pills or is there a chance that it’s pregnancy?
Answer
- Daria:
12/19/2018 at 20:29
Good evening, Tatyana! It is too early to assume that if the temperature rises above 37 and there are accompanying symptoms (for example, slight bleeding), then there is a high probability that conception has occurred. You haven’t measured your BT for a couple of days, the data is no longer accurate, try to measure it regularly. But Duphaston does not affect basal temperature in any way. Good luck and good health to you!
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04/15/2019 at 13:54
Hello, I ovulated on April 1, yesterday I measured my base temperature at 36.9, then it dropped to 36.5. Did conception occur?
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- Daria:
04/22/2019 at 22:16
Hello, Guldana! The probability is small, but it is there. Although it all depends on the accuracy of the measurements, have there been any associated symptoms since then?
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