At present, there are two main types of contraceptives widely used in clinical practice: the first, emergency contraceptive pills, which are known to most women and are generally applied to contraceptives that are not used once in a while or are used in an emergency when contraception fails. The second type of contraceptive pill is the oral short-acting contraceptive pill, which is represented by drugs such as Da-Ying-35, Ma-Fu-Long and Ursine. This type of contraceptive pill, if used regularly, can achieve 99.8% of the contraceptive effect, is currently the most effective contraceptive pill. However, this type of contraceptive oral medication is relatively troublesome, it requires that you start taking it when you get your period, and it is recommended to take it on time and in the right amount, not to stop it at will, otherwise it will easily cause menstrual disorders and other situations.