Ive been on birthcontrol many times in the past. I started again last month. I didnt remember that i was supposed to wait until until the sunday after my first period.. I started taking it on the sunday i revieved the script without getting my first period. After taking the last pill of the month I always got my period within the first few days, its been over a week now and I havent gotten my period. Could this be because I didn't take the pill the correct way, or could I be pregnant?[