Last month I went on vacation and forgot to bring my birth control with me. I only missed 3 pills, and got a very heavy period during those few days. When I got home, I continued taking my pills for the rest of the week. Then, I threw away the rest of it and started a new pack on Sunday. I waited about a week and a half before I started having unprotected sex again. I just finished my pack a few days ago, and I should have gotten my period right away like I usually do after finishing a pack, but I still haven't gotten it yet. Should I be worried?!