What is the safe period and the dangerous period
summary
Female friends have a holiday every month, which we are very familiar with, and then some friends don't know much about the safety period and danger period in the holiday, so let me introduce what is the safety period and danger period.
What is the safe period and the dangerous period
"Safe period" and "dangerous period" refer to the time interval during the menstrual cycle when an egg meets a sperm and becomes a fertilized egg, which is called "dangerous period", otherwise it becomes "safe period".
As the egg may be fertilized in two or three days after discharge, sperm can survive after discharge, and can enter the egg in three or four days. Therefore, if the ovulation day (usually 14 days before menstruation) is taken as the base, the first four days and the last five days are the danger period, and the rest are the safety period.
Women usually only discharge one egg in a menstrual cycle, and the fertility of the egg (that is, survival) is only 24-48 hours at most (waiting for fertilization in the fallopian tube) from the date of ovarian discharge. The life span of sperm in the female reproductive tract is about 2-3 days, so it is possible to conceive 2-3 days before ovulation and 1-2 days after ovulation. This period is called easy pregnancy period, also known as "risk period" ”Pregnancy period.
matters needing attention
The safety period is about 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.
