If you have intercourse after taking the emergency contraceptive pill for 9 days, you can usually take the pill again or get an IUD to prevent pregnancy. Generally speaking, the emergency contraceptive pill is taken within 72 hours of having sex without contraception can play a contraceptive effect. If you have sex again within 9 days after taking the pill without contraception, you need to take the pill again to avoid an unwanted pregnancy, or go to the hospital within 3 days to get an IUD to prevent an unwanted pregnancy. If you do not want to have children in the near future, it is recommended that you strictly use contraception when having sex, and you can choose the method of contraception according to your own situation, such as instrumental contraception, short-acting oral contraceptive pills, or placing an intrauterine device.