Help I'm confused?

So I'm 19 and pretty much a super virgin (like never been kissed) until a few nights ago. Still a virgin but this boy and I did end up making out and stuff, and now my period is like 4 days late (which pretty much never happens unless I'm super stressed, which I'm not really right now). I know I'm not pregnant, I'm not an idiot, I took sex Ed. But I'm wondering if during making out the body releases hormones that could delay the period a few days or something??