Yutin is an emergency contraceptive pill, so it can greatly change the body’s hormone levels, only once a month is recommended to take, twice a year is recommended to take within, is not recommended to take every month, or every time you have intercourse. It is not recommended to take it every month or every time you have intercourse, because this can easily destroy the normal hormone levels in the body and cause menstrual disorders, increased menstrual pain, and even infertility and other adverse consequences. It is usually advisable to wear an external condom and place an intrauterine device to prevent pregnancy, and not to ejaculate vaginally during the safe period. Because the safety period is not absolutely safe, in case of accidental pregnancy, you need to take emergency contraceptive drugs or abortion, etc., causing great harm to the body.