What are the chances of being pregnant if you missed one pill but took it 13 hours later and had unprotected sex 5 hours after that but then took your pill normally?

Not very high. I have missed 2 birth control pills before and I had unprotected sex with my husband and I did not get pregnant. I have heard that the birth control pill will still be in your blood stream for a while even if you miss one or two pills, but I am not for sure how true that is.