If you can’t detect it in the early stages of pregnancy, it should be premature. A blood test for human chorionic gonadotropin should be taken 10-12 days after intercourse. If the value is greater than 5mIU/ml, it is a sign of pregnancy. If there are two bars on the early pregnancy test, it is a strong positive indication of pregnancy. However, it is more accurate to use the morning urine to check the pregnancy test, because the concentration of human chorionic gonadotropin in the morning urine is higher. If the test is done after urination or after drinking water, the urine will be diluted and the test may be inaccurate and not detected.