What’s going on with me ? Someone please tell me

So I’ve been having sex a lot with my bf & everytime we do he cums in me we go 3 rounds & he does it everytime. I haven’t had sexual with him in 2 days though & my face broke out in a rash on Monday it calmed down now my skin is bumpy pretty soft too but bumpy I’ve always had clear skin what’s happening to me ? Am I allergic to his semen or something ?