Taking the pill twice in four days has an effect and can easily lead to disruption of hormone levels in the body, which can cause early menstruation, delayed menstruation, amenorrhea, infertility, premature birth, miscarriage, etc. The emergency contraceptive pill is mainly used as a remedy after sex when no contraceptive measures are taken, and cannot be used as a regular form of contraception, and it is not recommended to take it for a long time, and it is not recommended to take it more than three times a year. It is not recommended to take it more than three times a year. Taking a large amount of emergency contraceptive pills for a long time can easily lead to disruption of hormone levels in the body. Unmarried women can use condoms for contraception, and married women can use condoms and intrauterine devices for contraception. If a woman does not take the appropriate contraceptive measures during sex, she can occasionally take the pill for emergency contraception, which will not harm her health.