Pain during intercourse.. please read and reply

Sometimes during intercourse I will have pain on my right side. Other times like tonight it will feel like he hit something internally and he even said it hurt the tip of his penis and felt hard. I’ll go to restroom after and I’ll have some spotting. It’s every time I either have pain or it feels like he hit something and it’s excruciating sometimes. I’m gonna go see the doctor, but any ideas on what this could be? I want to enjoy sex but it’s hard when I feel this every time.