Within how many days you can know that got pregnant?

It is possible to find out if you are pregnant as early as 10 days after ovulation, which occurs about 14 days before your period is due. This can be done with a blood test that measures the level of the pregnancy hormone hCG (human chorionic gonadotropin) in your blood. However, most home pregnancy tests are not able to detect hCG until about 12-14 days after ovulation. So, if you take a home pregnancy test on the day of your missed period, and it is negative, it is possible that you could still be pregnant and should repeat the test in a few days.