Usually, the first maternity check-up takes place between the 11th and 13th week of pregnancy. The first checkup is usually performed between 11-13 weeks of pregnancy, which is good to know the physical condition of the pregnant woman and the development of the fetus. The examination items include ultrasound in early pregnancy; weight, blood pressure, fetal heart rate; urine routine, blood routine and blood type; kidney function, liver function and fasting blood sugar; and some virus tests, such as hepatitis B virus surface antigen test; HIV screening, syphilis spirochete screening, etc. In addition, since spontaneous and pre-eclampsia miscarriages are likely to occur during the first maternity checkup, it is necessary to actively cooperate with the doctor during the checkup to avoid accidents. In addition, pregnant women should abstain from eating high-protein and high-fat foods the day before the examination to avoid affecting the examination results. Because of the fasting blood sugar test, you should abstain from food and water after 10:00 pm the day before the test.