How many days before menstruation is the safe period?

Menstruation is an important physiological characteristic of women. Some people say that the seven days before and eight days after menstruation are the safe period. In other words, the seven days before and eight days after menstruation are the safe period. It is not easy to get pregnant during this period. However, is this scientific or not? Let us learn together how many days before menstruation are the safe period?

To calculate the safe period, you must first know what the ovulation period is. The ovulation period is 14 days before the next menstrual period, and the 3 days before and after the ovulation period are the real fertile period. However, the time of the next menstruation is uncertain, so the safe period is usually calculated conservatively. The dangerous period is calculated as 5 days before and after the ovulation period, a total of 10 days. The relatively safe period is from the end of the menstruation to the dangerous period, and the absolutely safe period is from the dangerous period to the next menstruation.

Because the menstrual cycle of many girls is not stable, it is necessary to consider the shortest menstrual cycle and the longest menstrual cycle. The safe period is the real safe period when both the shortest and longest cycles are calculated. And ovulation will generally not be delayed, so the absolute safe period calculated based on the longest cycle is truly safe.

Therefore, you need to calculate whether it is a safe period based on your shortest and longest menstrual cycles, as well as the time when your menstruation comes (not the time when your period is clean). For example, if your menstrual cycle is 28 days and your menstrual period is 5 days, then your ovulation period should be the 15th day from the beginning of this menstruation (not the 15th day after the menstruation ends, don't get this wrong), or the tenth day after the menstruation ends. Then the fifth day after cleansing is only 5 days away from ovulation, and ovulation may occur early, so the fifth day can no longer be considered a safe period. But if your menstrual cycle is 31 days, then your ovulation period is the 18th day from the start of this menstruation, or the 13th day after cleansing. Then the fifth day after cleansing is 8 days away from ovulation, which can be considered a safe period.

The calculation of menstruation and safe period is very effective for young people and can play a certain contraceptive role, but it is not very effective for young friends whose menstruation is not particularly regular. Calculating the safe period can help you stay healthy and prevent pregnancy successfully. But we cannot completely rely on this approach.