Pregnant women need to do routine blood and urine tests, ECG, NT test, Down’s syndrome screening, systematic ultrasound, fetal heart monitoring, etc. The tests done at different times are different. 1. Early pregnancy: Before the 12th week of pregnancy, pregnant women need to do some routine tests, including weight measurement, blood pressure, blood test (blood routine, blood type liver function, kidney function, hepatitis B, AIDS, coagulation function, etc.), routine urine test, electrocardiogram, NT test and so on. 2. Mid-pregnancy: Between 16 and 28 weeks of pregnancy, pregnant women need to undergo Down’s syndrome screening or non-invasive DNA to find out the risk of Down’s syndrome, as well as systematic ultrasound to find out whether there are any structural abnormalities in the fetus. 3. Late pregnancy: In the second trimester, pregnant women need to do glucose tolerance screening to determine whether they have combined gestational diabetes. In addition, ultrasound is needed in late pregnancy to know the condition of the fetus, placenta and amniotic fluid, and after 34 weeks, fetal cardiac monitoring is needed to know whether the fetus has hypoxia in the uterus. Pregnant women should go to the hospital regularly to check their health as well as the condition of the fetus, pay attention to diet and balanced nutrition during pregnancy, and usually pay attention to rest, but also appropriate walking.