Most female friends calculate the ovulation period based on menstruation almost, but when the menstrual period is abnormal, how to calculate the ovulation period? If the menstruation is not allowed, for a lot of reasons, what is the reason for the unclear cause of menstruation is not allowed? Explain the question of “Immoral ovulation period is not normal” for your sisters to refer to. Properly mastering the ovulation period is very important for young women: if you want to get pregnant, start on the first day of ovulation, keep the frequency of one-day life for two days, persist for a few months, if there is no special situation, you will generally get pregnant. . Women who don’t want to get pregnant need to miss sex in these days. At this time, the ovulation period will be called another term: dangerous period. Zeng Chaoyang, deputy director of gynecology at the Hospital of Integrated Traditional Chinese and Western Medicine of Southern Medical University, said that the period of pregnancy of the egg after ovarian discharge can not exceed 24 hours; the sperm of the man can maintain 2-3 days of fertilization ability in the woman’s reproductive tract, so the egg is in the egg. Sexual intercourse is easy to conceive before and after discharge. “The ovulation date of women is generally about 14 days before the next menstrual cramp. For the sake of insurance, people will refer to the ovulation period for the first 5 days and the last 4 days of the ovulation day, together with the ovulation day.” Zeng Chaoyang introduced The period from the day when the menstrual cleans to the day before the start of the ovulation period is the pre-ovulation safety period. From the first day after the end of the ovulation period to the day before the next menstrual cramp, the post-ovulation safety period. “The safe period after ovulation is safer than the safe period before ovulation.” 1. What is the ovulation period? Under normal circumstances, we will refer to the first 5 days and the last 4 days of ovulation, together with the ovulation day for 10 days. Ovulation. Because sexual intercourse is easy to conceive during ovulation, ovulation is also known as easy pregnancy or dangerous period. Ovulation is the process by which egg cells are discharged together with surrounding cumulus granule cells. The ovulation date of a woman is generally about 14 days before the next menstrual cramp. After the egg is discharged from the ovary, it can survive for 1-2 days in the fallopian tube to wait for fertilization; The man’s sperm can maintain 2-3 days of fertilization ability in the woman’s reproductive tract, so sexual intercourse is easy to conceive in the days before and after the egg is discharged. 2. How to calculate the normal menstrual cycle? The ovulation of female ovulation is cyclically changed by the endocrine hormones of the pituitary gland and ovary. The length of the two cycles is the same, one cycle per month, and ovulation occurs. In the middle of two menstrual periods. Women’s menstrual cycle is long and short, but the interval between the ovulation day and the beginning of the next menstrual period is relatively fixed, usually around 14 days. According to this relationship between ovulation and menstruation, the ovulation period can be estimated by the menstrual cycle. The calculation method is from the first day of the next menstrual cramp, the last 14 days or 14 days is the ovulation day, and the ovulation day and the first 5 days and the last 4 days are called ovulation. This is also the theoretical basis for the contraceptive method in the safe period, because in the menstrual cycle, except for the menstrual period and the ovulation period, the rest of the time is a safe period. 3, how to calculate the menstrual abnormality ovulation period If your menstrual abnormalities or instability, you can calculate the ovulation period according to the following method. The first day of ovulation = the shortest one of the menstrual cycle days minus 18 days; the last day of the ovulation period = the longest menstrual cycle days minus 11 days. For example, the menstrual period is as short as 28 days and the longest is 37 days. It is necessary to subtract 18 (28-18=10) from the shortest regular period and 11 (37-11=26) from the longest regular period, so The ovulation period is from the 10th to the 26th day after the menstrual tide.