Women who usually have regular periods can go for a pregnancy test if their periods are delayed by about 2-3 days. If the test is done with early pregnancy test paper, it is recommended to use the first urine in the early morning. The concentration of HCG in the first urine in the early morning is relatively the highest and the test result is more accurate, the test paper is two lines and the result is positive, which means the possibility of pregnancy is higher. Women who have their blood drawn to check for pregnancy can usually have the test done more than 10 days after having sex and do not need to wait until their period is delayed altogether. If the test is done after the postponement of menstruation, the accuracy of the test result is higher. For urine test to check pregnancy, it is eventually necessary to go to the hospital to draw blood to determine the result of the blood test for human chorionic gonadotropin.