Generally, a woman's menstruation will start after a few days when her basal bod

Generally, a Woman's Menstruation Will Start After a Few Days When Her Basal Body Temperature Rises

Basal body temperature (BBT) is the lowest temperature your body reaches during sleep. It's typically taken first thing in the morning, before you get out of bed or do any activity.

BBT can be used to track ovulation, which is the release of an egg from the ovary. Ovulation usually occurs 12-14 days before the start of your period.

After ovulation, your BBT will rise slightly. This is because the hormone progesterone, which is produced by the corpus luteum (the remains of the follicle after ovulation), causes your body temperature to increase.

The rise in BBT is usually small, only about 0.5-1 degree Fahrenheit. However, it can be enough to notice if you're tracking your BBT.

The rise in BBT typically lasts for about 10-14 days. If you don't get pregnant, the corpus luteum will break down and progesterone levels will drop. This will cause your BBT to drop back down to its normal level.

If you do get pregnant, the corpus luteum will continue to produce progesterone, which will keep your BBT elevated.

How to Track Your BBT

To track your BBT, you'll need a basal body thermometer. These thermometers are more sensitive than regular thermometers, so they can measure the small changes in your BBT.

To take your BBT, follow these steps:

1. Take your temperature first thing in the morning, before you get out of bed or do any activity.

2. Place the thermometer in your mouth, under your tongue.

3. Close your lips and breathe through your nose.

4. Keep the thermometer in your mouth for 5 minutes.

5. Record your temperature on a chart.

It's important to take your BBT at the same time each day. This will help you to see the pattern of your BBT and identify any changes.

Interpreting Your BBT Chart

Once you've been tracking your BBT for a few months, you'll start to see a pattern. Your BBT will typically be lower during the first half of your cycle, and it will rise after ovulation.

The rise in BBT is usually small, but it can be enough to notice if you're tracking your BBT.

If you don't get pregnant, your BBT will drop back down to its normal level about 10-14 days after ovulation.

If you do get pregnant, your BBT will stay elevated.

Using BBT to Avoid Pregnancy

BBT can be used to avoid pregnancy by identifying your fertile window. Your fertile window is the time during your cycle when you're most likely to get pregnant.

To identify your fertile window, you'll need to track your BBT for several months. Once you've identified your fertile window, you can avoid having sex during that time if you don't want to get pregnant.

Using BBT to Get Pregnant

BBT can also be used to get pregnant by identifying your ovulation day. Once you know when you're ovulating, you can time intercourse to increase your chances of conception.

To identify your ovulation day, you'll need to track your BBT for several months. Once you've identified your ovulation day, you can have sex 1-2 days before and on the day of ovulation.

Other Factors That Can Affect BBT

There are a number of other factors that can affect BBT, including:

Illness

Stress

Lack of sleep

Alcohol consumption

Certain medications

If you're tracking your BBT, it's important to be aware of these factors and how they can affect your results.

Conclusion

BBT is a simple and effective way to track your fertility. By tracking your BBT, you can learn more about your cycle and identify your fertile window. This information can be used to avoid or achieve pregnancy.

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