How many days after menstruation is the safe period?

For couples who do not want babies, contraception is a must. In order to avoid the impact of contraceptive tools on sexual life, many people have begun to try a greener contraceptive method - the safe period contraceptive method. If you want to make full use of this method, you need to master certain professional knowledge. But how many people can do this? That’s why the calculations are always wrong. So, how many days after menstruation is the safe period?

Many women do not know how to calculate their safe period and ovulation period. In fact, the simplest method is to use the law of their own menstrual cycle. You can use the 14th day before the expected next menstruation as the ovulation day, the period from 5 days before to 4 days after as the ovulation period, and the period outside the ovulation period as the safe period.

For women whose menstrual cycles are not very regular, it is best to calculate according to the following method:

Shortest cycle day - 18 = first day of fertility in the cycle

Longest cycle day - 11 = last fertile day of the cycle

For example: A woman's menstrual cycle has a basic regularity, with the longest cycle being 31 days and the shortest cycle being 28 days. Then 28-18=10, 31-11=20. That is, calculated from the first day of menstruation, the fertile period is from the 10th to the 20th day of the cycle. The period before the 10th day and after the 20th day of the menstrual cycle is the difficult period for conception, also known as the safe period.

Women's safe period is not absolutely safe

Typically, pregnancy occurs when an egg and a sperm meet in the fallopian tube. In a 28-day cycle, a woman will produce a mature egg between 12 and 16 days. The ovary releases the egg into the abdominal cavity, and then it reaches the fallopian tube, where it can survive for 24 hours. If sperm enters the fallopian tube during this period, the woman can become pregnant.

How to calculate the safe period? Taking a 28-day cycle as an example, the period from the day when menstruation ends to the day before ovulation is the safe period before ovulation. The safe period is generally considered to be the 7 days before and 7 days after menstruation, so it is commonly known as the first seven and the last seven.

The safe period is calculated by women by observing their own period before and after. If there are health problems such as endocrine disorders, this calculation method will not be very accurate. If you experience "false" menstrual symptoms such as vaginal bleeding and ovulation bleeding, they can easily be considered as signs of menstruation. If you use this time to calculate the safe period, it obviously cannot make the safe period safe enough, so you still have to do a good job of contraception.