Whether long-term contraception will affect pregnancy is related to the choice of contraceptive methods, and the commonly used clinical contraceptive methods are as follows: 1, intrauterine device contraception: if the long-term wearing of intrauterine devices, will affect the environment of the uterine cavity of some women, leading to the emergence of endometritis, which can lead to infertility; 2, the choice of contraceptive injection and oral contraceptive drugs contraception: to see whether it is a long-lasting contraceptive drugs, or short-acting contraceptive drugs. If it is a long-acting contraceptive, it will continue to act on the hypothalamus-pituitary gland, which may lead to difficulties in the recovery of the hypothalamus-pituitary gland, and may affect pregnancy in individual cases; 3. Barrier contraception: condom contraception is a reversible form of contraception, and the long-term use of condoms will not lead to infertility. In addition, clinical recommendations for couples with reproductive requirements, the best contraceptive method is still condom contraception, do not advocate the use of intrauterine devices or long-term oral contraceptive pills.