I am on Chateal birth control. I was an hour late on a pill 7 days before my period started. I took the remaining 7 pills correctly up until my period started. 4 or 5 days after my period started, I started normally taking the active pills again. I think I took 3 or 4 active pills before I had sex again, and my boyfriend ejaculated inside me. Do I have a reason to worry about being pregnant?