When is ovulation? - Popularization of science

The calculation method of ovulation period is as follows:

1. Calculate the menstrual cycle: The female menstrual cycle is usually calculated from the first day of two menstrual periods, which is usually 28 to 30 days.

2. Determine the fertile period: Add the first days of the two menstrual periods in the menstrual cycle and subtract 14 days. This is the fertile period.

3. Determine the risk period: The first 7 days and the last 8 days of the fertile period, also known as the dangerous period, are the periods when pregnancy is easier.

Although the calculation method is simple, it is very useful for women who want to become pregnant. For women who don't want to get pregnant, knowing your ovulation period and avoiding sex during this period are also important measures to protect yourself.

In addition to knowing your ovulation period, there are some other ways to predict your fertile periods. For example, basal body temperature can be measured using a thermometer or calculated using a calendar. No matter which method you use, it's important to know when you're ovulating.