Calculation method of safety period
There are generally three methods to calculate the safety period, which are divided into calendar method, basal body temperature method and observation method of vaginal secretion change. All three methods can be used in daily life.
Calendar method: If the menstrual cycle is always accurate, ovulation may be on the first14th day after menstrual cramps, the eggs can survive for about 2-5 days after ovulation, and the sperm can survive for 1-3 days after entering the female reproductive tract. Therefore, not having sex 3-4 days before ovulation and 5-7 days after ovulation can avoid pregnancy. For women with regular menstrual cycle, ovulation time is basically stable. Sexual intercourse during the safe period to achieve the purpose of contraception is called safe period contraception. This method is not suitable for young people, because the frequency of their sexual intercourse cannot be separated by about a week. This method is suitable for middle-aged people.
Basal body temperature method: Basal body temperature refers to the body temperature of a healthy person after waking up in the morning, which is generally the lowest body temperature in a day. In women of normal reproductive age, the body temperature rises immediately after ovulation and lasts until the beginning of the next menstrual cycle. By using the changing law of female basal body temperature, we can find out her ovulation period, and don't have sexual intercourse for the first 3-4 days and the last 5-7 days.
Observation method of vaginal discharge changes
Female vaginal discharge changes regularly with different periods of menstrual cycle. During ovulation, there is more and more mucus, and there is a moist feeling in the vagina, and the mucus becomes clear, which can be extracted, and the longest can reach 10 cm. This mucus lasts for the last day, usually ovulation. Don't have sex for the first 3-4 days and the last 5-7 days.
Bian Xiao reminded female friends that safe sexual intercourse is suitable for people with normal menstrual cycle, couples who often live together and can master and strictly abide by the safe period; Couples who don't live together often, women after giving birth or abortion, women whose mental mood, living environment and health status have changed, women who can't grasp the safe period, and newly married couples are emotional and sexually active, which is not suitable for safe contraception for the time being.
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