I'm 17 And My Boyfriend And I Were Fooling Around

I'm 17 and my boyfriend and I were fooling around a bit(I'm a virgin) then he started fingeringing me and when he put in alot my vagina started to bleed, I cleaned it up and we just assumed my cherry popped...I looked again because there was still slight bleeding the next morning and there is a visable part of my vagina that is almost black and it seems cut but I'm not sure what's going on or what specific spot it's medically called...it's the part were pee comes from and only half of it is black and a bit swollen..the day this happened it hurt to sit and it was sore but I feel no pain now just There is no more pain when I pee or touch it really but I can not put anything into my vagina without it having a stinging forceful pain(was trying to put a moistened qtip in to see if blood was in there too) also the blackened part goes down farther and it looks like it is torn in parts but blood blistered further down..I believe my vagina is cut inside the passage......what is this? What happened to my vagina? and what should I do?