The safe period is usually the first seven days before and after menstruation.

　　Women all know the importance of calculating the safety period, which is divided into a safety period before ovulation and a safety period after ovulation, but many women are not sure about the safety period. safe period However, we know very little about it, so people often ask how many days before and after menstruation are the safe periods? Is the safe period safe? female How to calculate the safe period? Next, I will introduce them one by one for your reference.

　　How many days before and after menstruation are the safe periods?

　　How many days before and after menstruation are the safe periods? Generally, the 7 days before menstruation and 8 days after menstruation are safe periods. The specific introduction is as follows:

　　Safety period is divided into pre-ovulation safety period and post-ovulation safety period. The period from the day of menstruation to the day before ovulation starts is the pre-ovulation safety period. From the first day after ovulation to the day before the next menstrual cramps is the safety period after ovulation. The safety period after ovulation is safer than the safety period before ovulation, but the safety period is not absolutely safe because women’s ovulation time is affected by environmental changes and mood swings, and ovulation can be delayed or advanced, or even extra ovulation may occur.

　　Is the safe period safe?

　　The so-called "safe period" is just a contraceptive method that is generally staged according to a woman's menstrual cycle. However, it does not mean that women will not become pregnant during the safe period. There may be objective factors that lead to pregnancy or even infertility. The success of contraception during the safe period depends on the understanding of the ovulation period. Without this knowledge, safety is impossible. The most important point is that the time when a woman ovulates is affected by the external environment, climate, her mood, and healthy Depending on the condition and other factors, ovulation may be delayed or advanced, and additional ovulation may also occur.

　　Therefore, the safe period cannot be calculated accurately, so it is not safe to say that the safe period is safe. If necessary, it is still recommended to use condoms or IUDs to prevent pregnancy. Moreover, modern women are under great pressure and live a fast-paced life. These factors will also affect the stability of their menstrual cycles. It is even less recommended for women whose menstrual cycles are inherently unstable. Safe period contraception method.

　　Statistics have shown that the failure rate of using safe period contraception is 14.4% to 47%. Therefore, the safe period contraceptive method is only suitable for people who have normal menstrual cycles, live together for a long time, and can correctly calculate the safe period. This method is not reliable for people with irregular menstrual cycles, couples visiting relatives, and women whose living environment has changed.

　　How to calculate the safe period for women?

　　1. Basal body temperature measurement method

　　Basal body temperature is also called resting body temperature. After a woman ovulates, progesterone secretion increases, which can increase basal body temperature (by more than 0.3 degrees Celsius), indicating that ovulation has been completed. The day when the body temperature in the body temperature record chart goes from low to high is the day of ovulation. The 5 days before the ovulation day and the 3 consecutive days thereafter are the fertile period and it is not suitable to have sex.

　　2. Cervical mucus observation method

　　The time of ovulation can be observed based on the physical and chemical properties of cervical mucus. After the menstrual period, because the level of estrogen is still relatively low, the secretion of cervical mucus is very little, and women have no liquid feeling at the vaginal opening, which is also called the "dry period." As the level of estrogen increases, the amount of cervical mucus increases. Women can use two fingers to take the mucus from the vaginal opening. The cervical mucus is thin and transparent near the ovulation period, which is called the "peak day". The period with mucus is the period of easy pregnancy, and it is not suitable to have sex. You can only have sex 3 days after the dry period and mucus peak period. If you want to prevent pregnancy during the safe period, you might as well try this How to calculate safety period。