Early pregnancy usually refers to the first three months of pregnancy, which is a critical period for embryonic development and organ formation. If affected by various biological factors (including bacteria, viruses, etc.), physical factors (ionizing radiation), chemical factors (toxic and harmful gases, medications, etc.), and illnesses (thyroid disorders, cardiovascular disorders, hematological disorders, liver disorders, diabetes mellitus, etc.), embryonic development will stop, miscarriage will occur or malformation of organs. Therefore, eugenic counseling during early pregnancy is very important. The main eugenic examinations during early pregnancy include: screening for teratogenic viruses, screening for reproductive tract infections, screening for mother-to-child transmission of infectious diseases including syphilis, Hepatitis B, and HIV; screening for common hereditary diseases including thalassemia, folic acid utilization, and deafness genes, etc.; and screening for common internal medicine diseases including thyroid function, liver and renal function, blood glucose, blood lipids, and basal blood pressure measurement. The program also includes screening for common medical conditions, including thyroid function, liver and kidney function, blood sugar and lipids, and baseline blood pressure. For pregnant women with a history of spontaneous abortion or chronic medical illnesses, eugenics screening should be advanced to the pre-pregnancy stage, and pregnancy should be guided by eugenics counseling and examination by a professional doctor. We hope that every mother-to-be will have a healthy and smart baby.