1. protein: Foods rich in high-quality protein, such as eggs, beef, milk, fish, shrimp and beans, can improve metabolism in the body, promote the excretion of metabolites, reduce the absorption of toxins, and make the body full of energy, which is not easy to cause diseases;

2. Vitamins: Fresh fruits and vegetables, such as apples, oranges, celery and spinach, are rich in vitamins, which can improve the body's disease resistance and increase the chances of pregnancy;

3. Minerals: Iron or foods with high calcium content, such as kelp, seaweed, fungus, etc., can store enough trace elements in the body, which is beneficial to the development of fetal bones and teeth during pregnancy and can also prevent anemia;

4. Folic acid: In the first three months of pregnancy, women should start to supplement folic acid according to the doctor's advice, and they can also eat some foods rich in folic acid, such as lettuce, spinach, cauliflower, etc., which can effectively prevent fetal neural tube defects and other diseases.

In addition, during pregnancy, you should quit smoking and drinking, have a light diet, avoid eating too much cold, spicy and irritating food, develop good living habits, ensure regular work and rest, and get enough sleep, so as to keep your body and mind in a good health state, which is conducive to increasing the chances of conception and improving the quality of embryos.