Unwanted pregnancies that require abortion to terminate can be painful for women and have adverse effects on school, work, life, and even mental health. Therefore, it is especially important for women of childbearing age to choose a suitable safe and effective contraceptive method. The following is a selection of contraceptive methods for each period of childbearing age. First, young couples or newlyweds are young and have not yet given birth, they should choose a contraceptive method that is easy to use and does not affect fertility. You can choose the compound oral contraceptive pill (COC) easy to use, good contraceptive effect, does not affect sexual life, as the first choice. In some countries in Europe and the United States, the use rate of COC among women of childbearing age has reached more than 30%, while in China, the use rate among married women who have used contraception is only about 1% due to the long-standing lack of awareness of COC within and outside the industry or the existence of multiple barriers. The male penis condom is also a more ideal contraceptive method. The penis condom can be used after sexual adaptation. External contraceptive plugs and films can also be used. Because they have not yet had children, generally do not choose intrauterine devices; should not use the safe period, in vitro ejaculation and long-acting contraceptive pills. Safety period or in vitro ejaculation contraception often fail. Second, lactation contraception in principle does not affect the quality of breast milk and baby health. Penis condom is the best way to use contraception during breastfeeding. Also can choose single progestin preparation long-acting contraceptive injection or subcutaneous implants, easy to use, does not affect the quality of breast milk. IUD placement during breastfeeding is also possible, but is prone to uterine damage. Because the vagina is drier during breastfeeding, contraceptive diaphragms are not suitable. Lactation is not suitable for the use of estrogen and progestin combined contraceptive pills or contraceptive injections as well as safe period contraception. Third, it is desirable to choose long-acting, safe and reliable contraceptive methods in the late childbearing period to reduce the pain caused by surgery for unwanted pregnancy. Various contraceptive methods (intrauterine device, subcutaneous implant, combined oral contraceptive pill, contraceptive injection, penis condom, etc.) are suitable and should be chosen according to individual health conditions. If a contraceptive method is contraindicated due to a medical condition, it is not recommended. Women who have had two or more children can consider sterilization. Fourth, the menopausal transition is still possible ovulation, should adhere to the contraception, should choose the contraceptive methods mainly external contraceptive pill. The penis condom can be used. The original use of intrauterine device without adverse reactions can continue to use, to six months after menopause Remove the vaginal discharge during the transition to menopause is less, should not choose the contraceptive pill film contraception, can choose contraceptive pessary, gel. Not suitable to choose compound contraceptive pills and safe period contraception.