Girls i need help!!

I noticed that with my current boyfriend of 3 months my vagina has a weird scent. It smells like normal vagina but very strong. It usually happens when we are having sex and I notice when he finishes in me my vagina will have discharge smelling like cum for days!! Is this normal? I never had this issue till my current boyfriend

(No fishy odor or anything. Like I said it's a strong vagina scent)