Menstruation begins on June 22. Under normal circumstances, the menstrual cycle lasts about 28 days, so starting from July 5, the ovulation period begins.

However, not all women will become pregnant during ovulation, because the combination of egg cells and sperm requires certain time and conditions. Therefore, women need to know how to grasp their ovulation period in order to get pregnant more effectively.

Generally speaking, the first 7 days and the last 8 days of a woman's menstrual cycle are safe periods, and women will not become pregnant during this period. However, the safe period is not absolutely safe, because some women may discharge some eggs, and even if these eggs are combined by sperm, they may not necessarily become pregnant.

So, how to know your ovulation period? Here are some ways:

1. Observe your own cycle: Understand your menstrual cycle and record it on the calendar to better grasp your safe period and ovulation period.

2. Measure body temperature: Women can understand their physical status by measuring body temperature, including whether they are in a safe period and whether they are in a dangerous period. Typically, a woman's body temperature rises for a few days after menstruation and then gradually drops, which is generally safe.

3. Use pregnancy test paper: If none of the above methods work, women can buy pregnancy test paper to test whether they are pregnant. Pregnancy tests are highly accurate, but it is best to test after getting up in the morning to get more accurate results.

Knowing your ovulation period is very important for pregnancy. Women can use the above methods to understand their safe and dangerous periods, and better grasp their physiological changes in order to get pregnant more effectively.