It is normal for women to have their periods once a month, but many of our friends don’t know which days are safe after their periods are clean and which days are dangerous, and they don’t calculate these dates, so let’s learn together about the safety period after the end of the period. Calculate which days after the end of the period is the safe period method is generally suitable for use in the menstrual cycle is more normal, the date is more accurate friends, if your menstrual cycle is not normal, or always early or wrong after you can only observe their own changes or try to take contraceptive tools, because you can not accurately determine which day is ovulation so try not to risk, in case of pregnancy may bring unnecessary to their lives It would be bad if pregnancy might bring unnecessary trouble to your life. Safe contraceptive period The period from the beginning of the current menstrual period to the first day of the next menstrual period is called one menstrual cycle. In terms of contraception, each menstrual cycle can be divided into menstrual period, ovulation period and safe period. Safety period contraception is a contraceptive method that stops sex during ovulation. It is a traditional method of contraception and was one of the most common methods of contraception at home and abroad before the introduction of the pill and the IUD. What are the days of ovulation? A woman’s ovulation date is usually about 14 days before her next menstrual period. The egg can survive in the fallopian tube for 1-2 days after being discharged from the ovary to wait for fertilization; the man’s sperm can maintain fertilization ability in the woman’s reproductive tract for 2-3 days, so it is easy to conceive during intercourse in the days before and after the egg is discharged. To be on the safe side, we refer to the 5 days before and 4 days after the day of ovulation, together with the day of ovulation, as the 10 days of ovulation. Because it is easy to conceive during ovulation, the ovulation period is also called the fertile period or the risk period. The safety period is divided into the pre-ovulatory safety period and the post-ovulatory safety period. The period from the day your period clears to the day before ovulation begins is the pre-ovulatory safety period. The post-ovulatory safety period is the period from the first day after ovulation to the day before the next menstrual period. The post-ovulatory safety period is safer than the pre-ovulatory safety period. This is because some women are sometimes influenced by environmental changes and mood swings that make ovulation earlier, so that the pre-ovulatory safety period is shorter and they are not aware of it, so that the pre-ovulatory safety period is not very safe. The chances of the ovaries ovulating twice in a menstrual cycle are very small, that is, after ovulation to the next menstrual period before the period generally does not occur a second ovulation, so that the post-ovulatory safety period is safer. The key to using safe period contraception is to determine a woman’s ovulation date. When ovulation occurs, there is usually no special sensation, even though some women may have symptoms such as lower abdominal pain, lumbago, breast swelling and emotional changes, but these phenomena are not unique to ovulation and therefore cannot be used as a basis for ovulation. Menstruation and ovulation are cyclical and there is a close relationship between the two. If you have a good grasp of the changes in the two, you can determine the date of ovulation by indirect methods. There are many ways to determine the date of ovulation, but the methods that women can master are: projection based on the menstrual cycle, measurement of basal body temperature and observation of cervical mucus secretion. Which days after the end of menstruation is the safe period do you understand? In fact, if you carefully observe your own menstrual cycle will soon be calculated, but if you are with a birth control ring friends do not have to calculate so carefully, but if you want to get pregnant friends can also be based on this method to calculate which days is ovulation, so it is easier to conceive.