Pre-pregnancy diet should generally pay attention to nutritional balance, diversification, not picky about food and so on. The pre-pregnancy period refers to the first three months of pregnancy, the first three months of pregnancy is the key period of embryonic development, this stage of the pregnant woman will have different degrees of early pregnancy reaction, it is recommended that pregnant women should eat a light diet, should not eat too greasy and indigestible food, eat less and eat more meals. Usually eat more fresh vegetables and fruits, as well as fish and shrimp, milk, soy products, lean meat and other high-protein foods, balanced nutrition, dietary diversity is conducive to fetal development. Pre-pregnancy in addition to diet should also pay attention to the appropriate amount of supplemental folic acid, to avoid fatigue and sex, should not do heavy physical activity, avoid contact with radioactive inspection and toxic chemicals, can not take drugs and so on. During pregnancy, you should have regular checkups to find out if the fetus is developing normally, and keep a good routine and mindset.