Could I Possibly Be Pregnant On The Pill?

I have been on Birth Control since June last year, approx 8 months. I finished my packet and I recently had my period. It ended before this weekend and like my routine I started my new packet on Monday. However my boyfriend and I had sex on Friday night (means I had already taken 5 pills of the new packet since Monday) with a condom. He said he came and we stopped but the condom had come off inside of me. I checked the condom after and yes his sperm was inside it. Later we got in the heat of the moment, he inserted his penis inside of me. It didn't even last a minute of unprotected sex before I said to stop. He did not come inside of me at all. It was too short because I panicked. What are the chances I am pregnant?