I had intercourse on July 24th, which is the Sunday that I started a new pill pack. I always take my pill around 1030 pm (I have been on the pill for 1 year now). We were using a condom but it broke and I took my first active pill right after intercourse and everyday since. I have 8 more days still my period is supposed to start and have been having unexplainable cramps. Could I be pregnant?