! Early pregnancy: The first three months of pregnancy are early pregnancy, and the focus should be on preventing miscarriage and teratogenesis. During this period, be careful not to abuse drugs, do radiological examinations, and avoid contact with toxic and harmful substances such as pesticides. Prevent viral infections, add or remove clothing in a timely manner, and pay special attention to actively prevent diseases such as rubella and mumps. In the early stages of pregnancy, strenuous exercise, sexual life, and heavy physical labor should be avoided. If symptoms such as abdominal pain and vaginal bleeding occur, you should go to the hospital in time. Second trimester: the 4th to 7th month of pregnancy. The focus of health care during this period is to consume enough protein, minerals and trace elements. Food should be diverse and fresh