How long does it take to prepare for the lining of the body is an unscientific statement. During the preparation for pregnancy, a woman needs to regulate her entire body, not just prepare for the process of the lining of the body. During the preparation of women need to regulate the whole body state, so that the body is in a healthy and conducive to the state of the fetus, to ensure that the regular routine, to maintain a healthy lifestyle, such as avoiding late at night, do not smoke and drink alcohol, appropriate physical exercise, to avoid obesity, etc., such as suffering from the underlying disease, should be adjusted and stabilized before getting pregnant. Diet, during the preparation for pregnancy, we should pay attention to balanced nutrition, avoid partiality, balanced intake of staple food and side dishes, fish, meat, eggs, milk and other high-quality proteins, avoid eating junk food; in the preparation for pregnancy three months in advance of the oral folic acid, to reduce the risk of incidence of neural tube defects and malformations in the fetus. If you need to prepare for pregnancy, it is recommended to do so under the guidance of a medical professional to facilitate the birth of a healthy baby.