Painful postpartum sex

I’m 5 mo postpartum and I haven’t been able to have sex without being in pain. The opening skin at the entrance of my vagina in the back that leads to my bottom gets so sore and feels like it ripped or something. I didn’t need stitches when I gave birth so Idk If maybe I tore a little and they didn’t see it or what. I waited until 6 weeks postpartum to have sex and have only had sex very few times since, but only for a few minutes each time cause it hurts too much. Did anyone else have this problem?? My insurance only covers a visit for postpartum depression or I would call and schedule and appt with the doctor.