Bleeding after ovulation ends?

Is this normal? I never get my period early but I guess it’s a possibility that’s what it is. I just got done ovulating yesterday and my fiancé and I had sex last night but I started bleeding just about an hour ago. Has this happened to anyone else? Is it just my period?

Edit: we have been trying and the last 3 times we’ve had sex, we haven’t used protection, and he’s came inside me. (Obviously)

Another edit: it’s been over an hour since I noticed the bleeding. I’ve wiped and put a pad in my underwear and it’s now stopped.