Unbearable pain during sex

Every time me and my partener have sex the area around my uterus hurts so bad, it used to be sometimes but now it's all the time. It feels like stabbing and I almost cry every time, I don't know what it is a I wish I could go to the doctor but I'm 17 so my mom would have to bring me but I haven't told her I'm sexually active. I don't think the pain is from him hitting my cervix because it hurts even when he goes slow and not deep. If anyone knows what this might be please tell me