I have been on tri sprintec for over a year now. Last month I took my pill at the same time everyday (8:40am). When Starting this new pack, I believe i took the first pill around 2pm and had protected sex later that night. The next morning I took the second pill at 9:44am and had unprotected sex using the pull out method. Each day since then I have been taking my pill at 8:46. still in the first week of the new pack, I had unprotected sex using the pull out method twice. Is there a chance I can become pregnant because I took that first pill a few hours late?