Is the first seven and the last eight a safe period or a dangerous period?

For women, the seven days before and eight days after menstruation is actually a way to calculate the safe period, because the seven days before and eight days after menstruation are safe periods, and the other time periods are dangerous periods. Therefore, understanding these time periods can help you do a good job of contraception.

1. From the perspective of contraception, women's monthly time can be divided into menstrual period, ovulation period and safe period. Normally, women of childbearing age release only one or two eggs per month. The egg can survive 1 to 2 days after being released, and the sperm can survive 2 to 3 days in the female reproductive tract. The fertilization ability is mostly within 24 hours after ovulation. After 2 to 3 days, the sperm loses the ability to combine with the egg. Therefore, if you have sexual intercourse 2 to 3 days before ovulation and 1 to 2 days after ovulation, you may get pregnant. This period is called the fertile period or the dangerous period.

2. Women usually ovulate about 14 days before their period. For safety reasons, the 5 days before and 4 days after ovulation, together with the ovulation day, are medically referred to as the female ovulation period. The rest of the days except the menstrual period are safe periods. The safe period is divided into the safe period before ovulation and the safe period after ovulation. The period from the end of menstruation to the day before ovulation is the safe period before ovulation. From the first day after the end of ovulation to the day before the next menstrual cramps is the safe period after ovulation. The safe period after ovulation is safer than the safe period before ovulation.

3. It should be noted that safe period contraception is only suitable for women with stable menstrual cycles. For women with short menstrual cycles or irregular menstruation, safe period contraception is unreliable. Usually, ovulation occurs within 2 days before or after the 14th day of menstruation, so the safe period is approximately within 10 days after menstruation, and from the 20th day after menstruation to the next menstruation. The closer to the menstrual period, the greater the possibility of contraception. For women with short menstrual cycles, the boundary between ovulation period and safe period is not very clear, so the safe period is not applicable. In addition, couples who do not live together often, women who have given birth or had an abortion, women whose mental state, living environment and health condition have changed, women who cannot grasp the safe period, and newlyweds who are emotionally excited and have strong sexual desire are temporarily not suitable for safe contraception.