When is the safe period for girls?

If you have sex seven days before and eight days after your period, the chance of pregnancy is very low, and it has the actual effect of contraception, so it is called the safe period of menstruation. However, the safe period of menstruation is not necessarily safe, sometimes women eat something by mistake, which can cause ovulation in advance or delayed. At this time, the safe period of menstruation is not safe, so remember to take protective measures.

Safety period calculation

For women, the safe menstruation period is a period when it is not easy to get pregnant. It is determined by the time and cycle of menarche, and the folk custom also has the term "seven before and eight after", which means that the seven days before menstruation and eight days after menarche are the safe menstruation period for women. This term has a certain regularity, but according to the different physical fitness of each woman, the time of the safe menstruation period will change, and the absolute safe period is also different.

Generally speaking, women secrete an egg every month. When there is no egg in the uterus, the chance of pregnancy is very low. This is what we often call the safe period of menstruation. However, the time of egg secretion every month is not fixed. Sometimes it will be early or late, just like women's menstruation, and sometimes it will be prohibited. If the menstrual period is often irregular, then the safe period of menstruation cannot be calculated, at this time women can no longer use the safe period theory of menstruation.

Combined with the above, except for the ovulation period and menstrual period, the rest of the time is the women's safe menstruation period. Safe period contraception is a very common contraceptive method. The prerequisite for this is that a woman's safe menstruation period and menstrual period must be regular. If the menstruation is irregular, the safe menstruation period cannot be calculated. Ladies should always pay attention to the time of their menarche in daily life so as to measure the safe menstrual period more accurately.

Safe menstrual period and dangerous period of pregnancy

In fact, the safe menstruation period and the dangerous period of pregnancy are relative. So how are the dangerous period of pregnancy and the safe menstruation period defined? In fact, generally speaking, the safe period of pregnancy refers to the interval when the egg cell meets the sperm to form the sperm and egg fusion and pregnancy, and the time relative to the safe period of pregnancy can be called the safe menstruation period. From the perspective of the time that the egg cell can be fertilized after being released and the survival time of male sperm, taking the ovulation period (usually 14 days before menstruation) as the number, the first 4 days and the last five days are all dangerous pregnancy period, and the rest of the period is the safe menstruation period.

In fact, the terms "safe menstruation period" and "safe period of pregnancy" are both for contraceptive measures. If you want to get pregnant, it is best to have sex during the safe period of pregnancy. The safe menstruation period is generally considered to be "seven before and eight after", and it is considered to be safe 7 days before and 8 days after menstruation. But this is only a basic rule. In fact, it generally refers to the safe menstruation period before ovulation is 7 days, and the safe menstruation period after ovulation is 8 days. But in fact, the safe menstruation period is divided into the safe menstruation period before ovulation and the safe menstruation period after ovulation, and the safe period of pregnancy refers to the fertile period (ovulation period), which is a few days before and after ovulation, generally referring to the 5 days before and 4 days after ovulation. If counted together with the ovulation period, it is a total of ten days.