Your body does not produce this hormone until implantation (when the fertilized egg attaches to the uterine wall). Iplantation does not occur until 6-12 days after ovulation. The soonest you can take a pregnancy test and get a positive test result is seven days after ovulation. Even though you can take the test this early, keep in mind that most women will get a false negative at this time. Levels of hCG may not be high enough in your system to register on the test.