How many days does it take to detect pregnancy? Pregnancy is a topic that every woman is very concerned about, but sometimes we don’t know whether we are pregnant. So, how many days can it take to detect pregnancy? Under normal circumstances, HCG can be detected in urine about 7-10 days after pregnancy, which is what everyone often calls a pregnancy test. If you want to get more accurate results, you can go to the hospital for a blood test 15 days after the pregnancy has stopped. What should you pay attention to during early pregnancy?