The safe period is a few days before the menstrual period

Generally speaking, girls have their periods every month. Periods are very important to women, and there are certain symptoms before the period. There are a few days before the period that are considered a safe period. If women have sex during this period, they will not get pregnant. However, many people do not know the exact time. So, how many days before the period are considered a safe period?

Commonly used methods for calculating ovulation period include menstrual cycle calculation method, ovulation test paper test method, basal body temperature measurement method and vaginal secretion observation method. With the help of the above methods, you can calculate the ovulation period and thus know your safe period.

The "first seven" and "last eight" are a method used to calculate the safe period. The "first seven" refers to the seven days before menstruation, and the "last eight" refers to the eight days starting from the first day of menstruation. It should be noted that "the last eight" does not refer to the eight days after the end of menstruation. If a woman starts menstruating on September 20 and ends on September 26, then the "first seven" refers to the seven days starting on September 13, and the "last eight" refers to the eight days before September 27. That is, the period from September 13 to September 27 is the woman's safe period.