The first abortion in pregnancy may affect fertility. The exact incidence also varies from person to person and is relatively low. Some people have had an abortion that led to secondary infertility; some people have had multiple abortions that did not affect fertility. Therefore, if there is no plan to have children, it is recommended to have good contraception normally to avoid unwanted pregnancy and unnecessary harm to the body. If you have a regular menstrual cycle, 14 days before your period is usually the ovulation period, and 4-5 days before and after the ovulation period is the danger period. If you have intercourse during the danger period, you will have a high chance of pregnancy, and if you have intercourse during the safety period, you will have a low chance of pregnancy. Whether it’s the danger period or the safety period, if you don’t have contraception, you may get pregnant accidentally. It is advisable to use condoms for contraception, which have no side effects and a high success rate; you can also take the short-acting oral contraceptive pill, which has relatively few side effects. It is not recommended to take the emergency contraceptive pill frequently, the dosage is relatively large, the side effects are also relatively large.