Early screening for Down’s syndrome and NT screening is usually done between 11-14 weeks of pregnancy to determine the risk of fetal diseases, such as trisomy 21 and neural tube abnormalities, which are detrimental to fetal growth and development. If congenital disorders are detected early, termination of pregnancy should be used as soon as possible to avoid adverse effects on the pregnant woman’s health. In the third trimester of pregnancy, it is necessary to observe whether the growth and development of the fetus is in line with the gestational cycle, and to know the number of maternity checkups and instructions on the precautions to be taken during pregnancy, especially in terms of diet, to pay attention to eating more nutritious vegetables, fruits and foods with high protein such as fish, shrimp, meat and eggs to meet the needs of fetal growth and development. In addition, women need to prohibit sex during the third trimester of pregnancy, and can have moderate sex after the third trimester.