4 days late period and a lot of clear discharge?

HELP!!!

I have never had sex but my bf and I often fool around ( fingering, blowjobs, etc...) and his penis has touched my vag (I’m sure) whilst he tried to give me anal (did not work out though)😬

The clear discharge is a lot more than I remember it ever being. I feel something come out and it feels like my period blood but when I check it’s just the clear discharge? It also has a strong Sharp smell to it.

I am currently going through exams and haven’t been sleeping so well.

Worried about pregnancy!!