Intercourse to avoid pregnancy, including the pill, condoms or the use of intrauterine devices, etc., as follows: 1, the pill: women can take short-acting, or long-acting contraceptive pills, etc. for contraception. For those who have internal ejaculation, emergency contraceptive pills should be taken as soon as possible, generally within 72 hours after the failure of contraception or no contraceptive measures, and the earlier the better the effect, but avoid taking it frequently, so as not to cause endocrine disruption, the use of long-acting contraceptives is not suitable for conception within 6 months after the cessation of the pill; 2, condoms: male external condoms for contraception throughout intercourse, with better results; 3. Intrauterine device: women who need long-term contraception after childbirth, you can choose the appropriate intrauterine device, able to long-term contraception. The role of the IUD is reversible, and later if you want to get pregnant again, take it out; 4, ligation surgery: for couples who have a history of childbearing, no fertility needs, you can do ligation surgery, such as vasectomy, tubal ligation; 5, safe period contraception: if the above methods of contraception are not tolerated, you can avoid intercourse during ovulation according to your own menstrual cycle, also has the effect of contraception, but generally Not recommended to take a safe period contraception, there is a certain possibility of pregnancy. There is no contraceptive method that can achieve absolute contraceptive effect, you need to choose the above contraceptive methods according to your own situation.