i got on birth control and I finished 1 full pack and I was on my placebo pill week. my boyfriend and I were having sex with a condom, but the condom busted right before he pulled out. he said nothing got inside, but my concern is that on the second week of my birth control packet, I took one of the active pills about 5 hours late. could I have gotten pregnant on my placebo week because of taking the pill a few hours late?