When after you ovulate do you have to wait to take a pregnancy test?

2 weeks: About 2 weeks later you can detect a pregnancy. Earlier than that and you could have a false test.

Pregnancy test: Great question. If you spend a couple extra dollars and by the higher and home pregnancy kits it actually have a positive pregnancy test detected two or three days before your expected menstrual cycle. Look for a kit that will detect HCG at 20 international units or higher.