Antibiotics and the pill

Hi everyone so if someone can help I’d appreciate it! I got on antibiotics during my 7 day placebo pills so non active pills and started my new pill pack a day or 2 late but it’s a combo pill. I had “unprotected sex” as in no condom and he came but peed after and I washed it out. Can taking the antibiotics during my placebo week make my pill less effective? Should I be worried? Had sex last night and it says my fertile window begins in 1 day. I’ve taken 2 pills out of the new pack so far.