Unwanted pregnancy can occur in women who are menstruating normally without contraception, and the chances of pregnancy are higher during ovulation. It is recommended that if you are not planning to get pregnant or are breastfeeding, condoms are recommended to prevent pregnancy, as a safe period is not absolute, and pregnancy is possible without a period or while breastfeeding. If a condom breaks or slips during intercourse, it is recommended to take oral emergency contraceptive medication in time, after all, abortion and induced abortion are more dangerous. If you already have a child and do not need to have children, you can place an intrauterine device to prevent pregnancy. If you have an unplanned pregnancy, it is recommended to go to the hospital in time to check whether you need a medical abortion or an abortion to prevent missing the best time for abortion.