I started my period on June 3 (Sunday). I was supposed to start my birth control that day, but delayed starting it until June 18th (Monday). I was taking the pill everyday at the same time for 7 days (June 18th-24th.) I had unprotected sex on the 7th day (June 24th) and my boyfriend ejaculated inside of me. Could this cause me to get pregnant, or is the birth control saving me, although I haven't been taking it that long? Serious answers only please.our question?