A. Properly increase the intake of fish, poultry, eggs, lean meat and seafood Fish, poultry, eggs and lean meat are good sources of high-quality protein, of which fish can also provide n-3 polyunsaturated fatty acids, eggs, especially egg yolks, are a good source of lecithin, vitamin A and vitamin B2. Choose animal food during pregnancy should be preferred to fish. Second, appropriate to increase the intake of milk Milk or milk products are rich in protein, which is important for the supplementation of protein during pregnancy, and is also a good source of calcium. Eat iron-rich food from mid-pregnancy to increase the blood volume and hemoglobin of pregnant women, while the fetus needs iron reserves, it is appropriate to increase the intake of iron from mid-pregnancy, if necessary, under the guidance of doctors to supplement small doses of iron. Pregnant women should monitor their weight at the right time and adjust their food intake appropriately according to the rate of weight gain. They should also do not less than 30 minutes of low-intensity physical activity every day according to their physical ability, preferably 1 hour to 2 hours of outdoor activities, such as walking, gymnastics, etc. The first thing you need to do is to stop smoking and drinking, and eat less stimulating food. Tobacco and alcohol have obvious toxic effects on all stages of embryonic development, such as causing premature birth, miscarriage and fetal malformation. Women who have the habit of smoking and drinking alcohol must abstain from smoking and alcohol during pregnancy and stay away from the smoking environment.