Bad diet and living habits during pregnancy can affect the normal development of the fetus, and there are many taboos during pregnancy, including dietary taboos and living taboos: 1. pregnant women should avoid eating all kinds of fried and deep-fried food, pickled food and all kinds of bagged junk food, and do not drink all kinds of commercially available beverages; 2. pregnant women should stay away from the stimulation of smoking and alcohol during pregnancy, and should never drink alcohol. Do not smoke and do not drink strong tea and coffee; 3. Do not have sex during the first three months of pregnancy and the second three months of pregnancy; 4. Do not engage in strenuous exercise or heavy physical labor throughout pregnancy; 5. Do not play with cell phones and computers for a long time during pregnancy and do not stay up late; 6. Do not use drugs indiscriminately during pregnancy.