J.B.
What I do when there is any slip up is test 4-6weeks from the time my hubby and I had sex that was unprotected. I just get a test that has a two pack, I test at four weeks from the time it went down, and if negative then wait two weeks and take the other test at six weeks. If both are negative, then I feel pretty confident. I would say though that when I was using bc my dr advised me to hold off on taking any more while I was waiting to find out. Good luck, hope it goes however you are wanting it to:)