When is the safe period and dangerous period of menstruation

The female menstrual cycle is divided into the physiological period, the safe menstrual period, and the ovulation period. Having sex after ovulation can increase the chance of pregnancy, and the safe menstrual period is the best time to take contraceptive measures. Let us actually understand when is the safe menstrual period and the dangerous period of pregnancy? Regarding this issue, I hope that the detailed introduction in this article can be helpful to everyone.

When is the safe menstrual period and the dangerous period of pregnancy?

1. Traditionally speaking, seven days before menstruation and eight days after menstruation are the safe menstrual period for adult women, which is a calculation method used by most people for contraception. In addition to the calendar method using the number of days to calculate, there is also the ovulation temperature method and secretion observation. However, the safe menstruation period is not absolutely safe. Sometimes women ovulate earlier or later, so the judgment of the safe menstruation period will become invalid. Identifying the safe menstrual period only reduces the chance of pregnancy.

2. The so-called "safe menstruation period" and "safe pregnancy period" refer to the time in the menstrual cycle when the egg cell meets the sperm to form sperm and egg fertilization and pregnancy is called the "safe pregnancy period", and the opposite period becomes the "safe menstruation period". Because the egg can be fertilized within two or three days after it is discharged, and the sperm can survive for three or four days after it is discharged and can enter the egg, if the ovulation period (usually 14 days before menstruation) is used as the number, the first four days and the last five days are the safe period of pregnancy, and the rest of the period is the safe period of menstruation. If you think your period will come on the 28th, then normally the ovulation period will be on the 14th.

Therefore, it is possible to get fertilized and pregnant if you have sex from the 11th to the 19th. Therefore, the 11th to 19th are called the "dangerous period of pregnancy"; the rest of the time is the "safe menstruation period". However, because it is difficult for most people to grasp the exact time of ovulation (in fact, the body temperature on the day of ovulation is higher than usual, the viscosity of vaginal mucus increases, etc.), most people use the menstrual period to calculate the "safe menstrual period", and the 7 days before menstruation and 5 days after menstruation are used as the "safe menstrual period". If your period comes on the 28th and ends on the 31st, then the "safe menstrual period" is from the 21st of this month to the 5th of next month.