When are the safe period and dangerous period for women?

I often hear women around me discussing the safe period and the dangerous period, but at the same time I find that many girls don’t know much about how to calculate their safe period and dangerous period, that is, they don’t know how to calculate it. Next, let’s take a look at when are the safe period and dangerous period for women?

"Safe period" and "dangerous period" refer to the time interval during the menstrual cycle when the egg meets the sperm to become a fertilized egg and conception. This is called the "dangerous period", and the opposite is called the "safe period". Since the egg can be fertilized within two or three days after being released, and the sperm can survive for three or four days after being released and can enter the egg, if the ovulation day is taken as the base, which is generally 14 days before menstruation, the first four days and the last five days are the dangerous period, and the rest are the safe period.

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. This is because some women sometimes affected by environmental changes and mood swings affect the advance of the ovulation, so before the safe period ovulation will be shortened, but did not know their own, so before the safety period ovulation is not safe. The opportunity that the ovary has two eggs in a menstrual cycle is very rare, that is, after ovulation to the next menstrual cramps before this period of time usually won't happen again the second time of ovulation, so the safety period after ovulation is relatively safe.

As mentioned above, the calculation of safe and dangerous periods is closely related to the stability of women's menstrual periods. Generally speaking, the more stable the menstrual period is for women, the more accurate the above calculation method is. Conversely, the lower the cycle stability, the lower the accuracy is.