Started pack of Birthcontrol 12 hours late? Am I protected still? Help please?

Hello
I’m taking Ortho Novum ⅓5 combined pill. Ive been on this birth control for about 2 years now. I started my pack on Tuesday (like normal) but I took the first pill 12–13 hours later than I should have. Ive been taking them at my normal time since then, and 3 days after starting my pack I was intimate (friday). I’m a little worried now that starting this pack 12 hours late may decrease my effectiveness? Am I protected still? because I didn’t miss a pill it was just late. And I’m concerned about that morning. So would starting my pack later than normal but on the same day make me unprotected? Please help if you have had a similar situation I’m kind of worried. Thankyou.
Also Its about a week before my period now and im feeling quite sick to my stomach alot. Im hoping it not because I started this pack late. Please help me, could I get pregnant?