I've Been On Apri Birth Control For A Couple Of

I've been on Apri birth control for a couple of years. When I'm on my period ( which is usually regular), I never take the sugar pills only the active ones. I started a new pack and two days in I took my second pill 8 hours later than my regular time and after ended up having possible unprotected sex. The condom fell off at some point, and we don't know when or if he finished inside of me. Therefore, what are the possible chances that I could get pregnant? Will Apri still be effective if I didn't miss a pill but I still took it late but before having unprotected sex? please help!!! I hate being paranoid and worry too much.