6 weeks ago my girlfriend and I had sex and after a while it began to hurt her and we had to stop. I just figured I hit her cervix and that caused the pain. The next day she woke up and said she was having pretty bad stomach pains. A week later we had sex again but we had too stop because she said her stomach kept hurting. The pain would almost make her cry and she would lay there for some time before feeling better. This happened a few times more. We then didn't have sex for about 3 weeks to a month. When we tried again I began to finger her and she seemed wetter than usual. I kept getting a feeling that something wasn't right so I turned on the light and my whole hand was covered in blood not just the fingers I was using. She hasn't bled since. Two days later(yesterday) she told me that her back had been bothering her. She also almost never gets periods.
We looked up these symptoms online and miscarriages came up. This was shocking because we didn't think she was pregnant. Especially since I don't ejaculate while having sex.
Could you please respond and let me know what is going on? Thank you.