5 situations that are not suitable for safe period contraception

　　The basic principle of safe period contraception is to avoid sexual intercourse during the so-called unsafe period before and after ovulation, so that the egg and sperm No chance of encounter. Its success depends on knowing the exact date of ovulation.

　　So far, using laboratory tests, hormone levels and B-ultrasound to monitor ovulation can only measure the period of time when ovulation occurs. It is difficult to accurately determine when ovulation occurs unless B-ultrasound is continuously monitored. And we usually know the safe period by roughly calculating which days may be the ovulation period. The safety period thus derived is inherently less precise and reliable. What's more, ovulation is often caused by women's healthy Changes occur due to changes in environment, emotions, etc., and phenomena such as extra ovulation may also occur due to sexual stimulation. Therefore, contraception during the safe period requires the cooperation of both couples and strict control, otherwise it is easy to fail. Married women with one of the following conditions should not use this method:

　　(1) Those with irregular menstrual cycles and difficulty in grasping the regularity of ovulation.

　　(2) During visits to relatives.

　　(3) For those whose menstruation and ovulation are not regular after childbirth and during lactation, they can only be used after normal menstruation has resumed for at least 3 times.

　　(4) Newlyweds.

　　(5) Women whose work, study and life are extremely irregular and cannot control their own ovulation should not use it.

　　Safe period contraception is in line with the physiological conditions of the human body and does not require special preparation before sexual intercourse. However, since it is easy to fail if you don't master it well, it is best not to use the above five situations for the time being. 》》》》  ancient times8A strange contraceptive method