Please help!

I started my period on the 23rd of this month and on the 3rd day I had intercourse with my man unprotected and now my period stopped! It usually last 6 days and I’m regular. I’m stressing a bit because I was kind of hesitant he convinced me even tho they say you can’t get pregnant but now there’s nothing. I’m not even spotting.. is it ok should I be worried?