There are different ways to test for pregnancy, and different ways to represent the results. The results of a urine pregnancy test test are expressed as negative and positive. If the patient is pregnant the result of the test should be positive and if the test is negative, it means that the patient is not pregnant. However, the results of a urine pregnancy test can be affected by many factors such as the quality of the test strip, the time the patient is tested, the procedure the patient is tested and the time it takes to read the results, so its results are not 100% accurate. A positive urine pregnancy test in women means that the patient has a high chance of pregnancy, but it is not 100% certain and needs to be verified again. If the blood chorionic gonadotropin is checked to determine if the patient is pregnant, it depends on its specific value. When the blood chorionic gonadotropin is more than three times the normal value, it means that the patient is pregnant. If ultrasound is used to detect whether the patient is pregnant or not, the result of the test depends mainly on whether the ultrasound can see the presence of a gestational sac. If the gestational sac is visible, it is a normal pregnancy if it is inside the uterine cavity, and an ectopic pregnancy if it is outside the uterine cavity.