Pregnant & Sex

I’m 20 weeks pregnant with my second child, due in July. The times I had sex during my first trimester & beginning of second trimester, there wasn’t any problems. So These last two weeks, after having intercourse with my bf, I’ve been burning down there. Mind you, I went to the doctors to get checked, ran some test. I don’t have any stds. But I did get a mild case of yeast infection. Doctor advise that I use Monistat 7. First day was alright, slight burning. Days past & everything’s normal; just really hate how uncomfortable the applicator is. I’ve completed the Monistat 7 and we went back to having sex. When he’s inside of me, there’s no burning. It’s only after we’re done doing it, I start burning 😭 Is it normal to burn after sex while pregnant?