This issue is of concern to all married women of childbearing age, and the principle is to marry at the right age, or as the saying goes, what to do at what age. All contraceptive methods have their own characteristics, their own population and their own side effects. The choice of contraceptive method is an informed choice, that is, people are informed about the various methods and the choice is voluntary. For contraception for women who still want to have children, the combination of short-acting oral contraceptives, subcutaneous implants, long-acting progestin injections, and condoms are appropriate, but the latter are relatively unsafe, with the benefit of being a barrier to sexually transmitted diseases. In other words, short-term contraception is preferred over short-acting oral contraceptive pills, while longer-term contraception is preferred over subcutaneous implantation and long-acting progestogen injections, and condoms are added for multiple partners or for those with multiple sexual partners. After the birth of a child, women without childbearing requirements should choose long-acting contraceptive methods, such as intrauterine devices, subcutaneous implants, long-acting progestogen injections, etc. Some people believe that the safety period plus tool contraceptive effect is also good, if the regular menstruation, ovulation is accurate is also feasible. However, condom contraception, safety period contraception and emergency contraceptive pills fail in a minority of patients who have abortions for unplanned pregnancies every year. If there are good contraceptive methods available, why not use them? Abortion is a method of terminating an unwanted pregnancy and should not be used as a means of solving the problem.