If you have intercourse and ejaculate into the vagina, but do not want to get pregnant and need contraception, it is advisable to take oral emergency contraceptives, you can apply Yutin within 72 hours orally, first take 1 tablet, 12 hours and then take 1 tablet will achieve the purpose of contraception. But oral emergency contraceptive pill is not 100% will not get pregnant, individual differences, some people may get pregnant even if they take the emergency contraceptive pill within the specified time. So it is also recommended that in daily life, if you do not plan to get pregnant first to do a good job of contraception, such as the use of condoms during the whole process of sexual life to contraception, and before using condoms, to understand whether the condom is broken, loopholes before giving use, so that the contraceptive effect is good, but also safe and hygienic.