Level 1: How long after intercourse can I take a pregnancy test? Before taking a pregnancy test, you need to understand the process of conception. The female menstrual cycle is generally 28 days, and the ovulation period is about 14 days before the start of menstruation. At this time, eggs will be released from the ovaries. If you have sex with a man during this time, you may get pregnant. But since sperm can survive in a woman’s body for 3-5 days