TMI !!

Okay this is kind of tmi so I apologize with time . So yesterday I went to wipe and I was bleeding pretty heavy so I went to check and I was bleeding from the side of my vagina (20 weeks pregnant) I went too look and I saw a little cut but I haven’t had sex in a while and I haven’t hurt my self with my nails or when I wipe I called my doctor And they think it’s a uti even though I know it’s not because I see the little cut ! Has anyone else experienced this before