When pregnant, blood can generally be drawn to check HCG, progesterone, blood routine, liver and kidney function, blood sugar, hepatitis B, syphilis, AIDS antibodies, etc. According to the test results and reference range, the health status of pregnant women and pregnancy can be roughly judged. 1, HCG: HCG > 5.0IU/L on the 7th-10th day of pregnancy, HCG > 100IU/L on the 30th day of pregnancy, 50,000IU/L on the 56th-70th day of pregnancy. L≤HCG≤100000IU/L, during pregnancy, HCG level usually doubles every other day; 2, progesterone: normal range of blood progesterone in early pregnancy is 63.6-95.4nmol/L, serum progesterone level is low in tubal pregnancy, mostly around 30nmol/L; 3, blood routine: among them, red blood cell range value is (3.8-5.1)×10^ 12/L, the reference value of hemoglobin is 100g/L, and the normal value of platelets is (100-350) × 10^9/L; 4, liver and kidney function: urea nitrogen 9-20mg/dl, creatinine 0.5-1.1mg/dl, uric acid 89.00-357.00μmol/L; 5, blood sugar: the normal value of fasting blood sugar for pregnant women is 3.1-5.1mmol/L, and 1 hour after meal should not exceed L, 1 hour after meal should not exceed 10.0mmol/L; 6. Hepatitis B, syphilis, AIDS antibodies: antibody tests during pregnancy are generally negative, if the test result is positive, it represents the presence of infection.