Post Date December, 03 2023
Is the calculation of women's safety period accurate? Is the first seven to eight really a safety period? The safe period is the saying goes, "seven days before and eight days after menstruation". The first seven days and eight days after menstruation are safe, and I don't know to what extent this is credible. However, some people still get pregnant during these days of marital life.
To be precise, it is as follows:
The ovulation period is generally 14 days before the next menstrual cycle, rather than 14 days after the start of this cycle.
2. For the sake of safety, the first 5 days and the last 4 days of ovulation, including the ovulation day, are considered as the ovulation period for a total of 10 days.
The most adventurous approach also needs to avoid the general survival time of sperm and egg cells of 72 hours, so at least 3 days must be left before and after, which is the minimum reserved period for the safety period.
There are several situations:
a. If the menstrual cycle has been 28 days for a long time, it can be treated as seven days before and eight days after, as this can avoid the dangerous period of 10 days.
b. For a woman who often has short cycles, such as a cycle of 21 days, the ovulation date is probably on the 7th day, and there is no safe period before ovulation at this time, as there may be a minimum reserve period before ovulation just after the end of menstruation at any time. For such women, even if their menstruation is just over, there may be a risk of pregnancy.
c. For a woman who often has long cycles, such as a 35 day cycle, the ovulation date is around the 21st day, and the delayed ovulation often makes it difficult to determine the safe period after ovulation.
d. If the menstrual cycle has always been unstable and the safe period cannot be calculated, the safe period method cannot be used.
The safety period may change due to various reasons, so it can only serve as a reference and cannot be used as an effective contraceptive method.
