Had unprotected sex with spouse. not fertile, not ovulating. he accidentally came inside of me. that was 4 days ago. took pregnancy test yesterday it was negative. period is 4 days late. can i be pregnant?

Not if not fertile: A person who is truly not fertile cannot produce a child... but some people think they are not fertile, but are actually just LESS fertile, and not completely infertile. Therefore, such a person can wait for her next regular menstrual period, or do a home pregnancy test. Tests are very accurate by 3 weeks after sex, but if done too early, a negative test result may be a false negative.