Question: can a pregnancy test show positive 7 days after intercourse?
Answer: By 7 days post ovulation a pregnant woman can have up to 50 mlU/ml of hCG circulating in her blood. So we can assume that most, but not all, pregnant women will have enough hCG in their system by 7-10 days after ovulation to confirm a pregnancy with a highly sensitive test (20 mlU/ml).