γγThe precautions for the 4th week of pregnancy mainly include maternity checkup, folic acid supplementation, reasonable diet and proper exercise, etc.γγ1.Obstetrical checkup: you should actively improve the relevant examinations in the early stage of pregnancy, including blood routine, urine routine, liver and kidney function, and basic items such as hepatitis B, AIDS and syphilis, as well as electrocardiogram and ultrasound, which can clarify the location and development of the embryo; 2.Folic acid supplementation: you need to take folic acid in the early 3 months of pregnancy as prescribed by the doctor, which can effectively prevent neural tube malformation of the embryo; 3.Rational diet: take a balanced intake of nutrition. Adhere to a small number of meals, the diet is mainly light, such as fish, shrimp, eggs, soy products, black sesame, red dates and fresh vegetables, fruits, etc., appropriate supplementation of vitamins, proteins, trace elements can promote fetal development, do not eat too oily, salty, spicy food; 4, appropriate exercise: early pregnancy to avoid running, jumping and other strenuous exercise, you can take a walk, yoga and other more moderate exercise activities to enhance the body; 5, daily life, to avoid running, jumping, etc. 5, daily life: avoid cold and flu, ensure sufficient sleep, away from toxic and harmful substances to prevent fetal malformations. Prohibit intercourse in early pregnancy, pay attention to personal hygiene, avoid infection, and reduce the chance of using medication. Relax, don’t be too nervous and anxious. In case of lower abdominal pain and vaginal bleeding during pregnancy, you must go to the hospital to avoid delaying the condition.