question: I was sexually active with my fiancee everyday starting July 17-24. We were active several times during the day everyday and did not use protection. I am taking birth control. the 17th however was supposed to be the start of my period, so I did not take a pill that day. i didnt actually start until late on the 18th. I also took a pill late on the 22nd. Would it possible for me to become pregnant? If so, when should I take a pregnancy test.