How many days can you tell if you are pregnant? The most common way to know if you are pregnant is to do a urine test. A few days after conception, a woman\’s body will begin to secrete the HCG hormone. This hormone will also appear in the urine, so the results of the urine test can reflect whether she is pregnant. Normally, for most women in the early stages of pregnancy, about 8-10 days after conception, test results can clearly show whether they are pregnant. If pregnancy is detected through a pregnancy test stick or pregnancy test paper, please seek medical advice as soon as possible and undergo prenatal care in a timely manner.