After pregnancy, the results of different tests may vary. If the urine pregnancy test and urine pregnancy test are positive, if the blood is drawn for HCG, the HCG level will increase, and if the blood is drawn for HCG on the next day, the HCG level will double. In addition, if the blood test is done after pregnancy, the results of the routine blood test of pregnant women will also change from the time when they were not pregnant, which may show an increase in white blood cell count, a slight increase in neutrophil classification, and a decrease in red blood cell pressure volume and a slight decrease in red blood cell count because of the increase in blood volume. If the coagulation function is checked, it will be found that the blood is in a hypercoagulable state, platelets are slightly reduced, and the prothrombin time and activated partial thromboplastin time are slightly shortened.