the pill and antibiotics?

I just got antibiotics for a UTI I currently have, it’s nitrofurantoin (aka macrodantin, macrobid). does this antibiotic interfere with the pill?? I had sex last night not knowing I had a UTI and he pulled out but if some sperm got inside of me and nitrofurantoin interferes with my combination pill, I should be worried right????? I read online that only some antibiotics interfere with the pill so i’m hoping this isn’t one of them.