The precautions to be taken to protect the fetus during pregnancy include dietary management, life management, emotional and psychological management, and regular pregnancy checkups. 1. Diet management: after pregnancy, pregnant women should pay attention to dietary diversity, diet and nutritional balance, not only to eat more seasonal fresh vegetables and fruits but also to eat a moderate amount of meat, dairy, eggs, seafood, coarse grains, mushrooms and other foods, to ensure that the intake of energy is sufficient. 2. Life regulation: in life, to quit smoking and drinking, regular routine, appropriate activities, to avoid staying up late for a long time. 3. Emotional and psychological conditioning: try to maintain an optimistic and happy mood, avoid being anxious and angry. 4. Regular pregnancy checkups: Regular pregnancy checkups as well as anomaly checkups can help you understand the health of the pregnant woman as well as the fetus. Pregnant women need to be under the guidance of obstetricians, scientific and reasonable birth control.