Surprising A Girl From Uni

I work as a male stripper and I usually just do a dance, have fun and leave. Its a fine job. I also attend uni, and stripping is how I pay. I got a gig at a birthday party, her friends said to get ready "for more". She had no idea about it and since getting ready for more means sex, I always wear a mask. My uni cant figure out Im also doing naked shows. So I go to the birthday and the birthday girl is someone I recognize. I have seen her at uni. Shes alright, I wouldny have pursued her, but she is attractive. I do my usual routine and the friends tell her they have another surprise in the other room.
I really dont know what I was supposed to do, but we went into the room and I was planning to just do a naked lap dance or smth like thay. Instead she immediately grabs my cocks and sucks it. It feels really good so I go along with it.
She lays on her bed and exposes her tits and pussy. At this point Im all hot so I jump on and fuck her as hard as I can. She isnt afraid to moan or shout. She was moving and twitching in pleasure when I felt like I was gonna cum. She locked me in her and told me shes on the pill, so I should cum inside. I had no other choice. It felt soo good cumming inside her.
This was 4 months ago, I see her at uni with a bump now, so is it mine? I have no idea