Hey Any Doctor Please? My Boyfriend And I Had Intercourse

Hey any doctor please?
My boyfriend and I had intercourse two days ago but not vaginal it was fingers involved and the day after I was a little sore down there, I thought it would go away well now today it is very very painful, as I walk and urinate and burns but it is not the sensation of a UTI it is not constant pain but only when I walk and when I first sit down.? Could it be just a scratch maybe from his fingernails or something a little more serious????