Preparation for pregnancy requires the joint efforts of both husband and wife, to maintain good health, happy mood, quit smoking and drinking, avoid colds and so on. 1. Maintain physical health: both husband and wife should actively participate in physical exercise during the preparation period, maintain physical health, enhance the body’s immunity, in order to produce high-quality sperm and eggs, and give birth to a high-quality baby. 2. Maintain a happy mood: it is very important for both husband and wife to maintain a happy mood during the preparation for pregnancy, because a happy mood is conducive to the stability of hormones in the body, which is good for fertilization and embryo implantation and development. 3. Quit smoking and drinking: couples who want to prepare for pregnancy should also quit smoking and drinking and stay away from the smoking environment. 4. Avoid colds: During the preparation period, both husband and wife, especially the woman, should avoid colds, because bacterial or viral infections may affect the normal development of the fetus. During the preparation for pregnancy, both husband and wife should not only keep healthy, happy mood, quit smoking and drinking, avoid colds, but also do a lot of things, such as ensure adequate nutrition, pay attention to oral diseases, and timely supplementation of folic acid and so on. It is recommended to consult a doctor in time and prepare for pregnancy scientifically under the doctor’s guidance to promote the success of pregnancy.