I always take my birth control and have never had a problem. We'll the last one I took of the pill was coincidentally the last day of my period. I went to refill it to have them ready to take tomorrow and I had no refills left. All in all I couldn't even get them until the end of the week. When I finally got them I struggled taking them on time. While this was happening I was having unprotected sex. Does this really increase my chances?