In the clinic, there are still quite a lot of effective contraceptive methods: first, you can avoid the danger period, if the period is regular, 1 month to 1 period, you can calculate their safe period, avoid the danger period intercourse, you may avoid pregnancy. Second, you can take oral contraceptives, if you do not intend to get pregnant within six months, you can take oral contraceptives, if you want to have the intention of pregnancy, you have to stop taking contraceptives, at least 3 months before you can plan to get pregnant. Third, in vitro ejaculation, which is also a contraceptive method, but there are certain risks. This is because before ejaculation, the prostate fluid contains a small amount of sperm, which can cause pregnancy if left in the vagina. The fourth, can be on the intrauterine device, which is a relatively simple, effective, and convenient method of contraception, or reversible, if you plan to get pregnant, you can always go to the hospital to remove the birth control ring. Fifth, you can use condoms, now there are not only male condoms, but also female condoms, which are also relatively safe. Sixth, you can do sterilization surgery.