There are three main methods used by hospitals to detect pregnancy in patients: first, urine pregnancy test, which is the same as the one used by patients at home using their own pregnancy test strips. Operated by professionals can ensure that there is no error in the testing procedure and the time to read the results is within the prescribed range, which can reduce the inaccuracy of the pregnancy test. Secondly, check blood HCG, when the patient’s last test result is more than three times the normal value, it proves that the patient is pregnant, when the test result is more than the normal value, but within three times the patient has the possibility of pregnancy, and need further monitoring. Third, through the ultrasound detection of pregnancy, ultrasound can observe the location of the pregnancy sac in the uterine cavity or outside the uterus, if it is in the uterine cavity can monitor the size of the pregnancy sac, whether there is a fetal heart and so on.