Ok I need some help and I don't know what to do...I really do need help and strong advice what should I do???? Should I stay with her??? I?

Ok so a few years back in the sprin semester of 2014 I went on a lot of dates with this girl. When we began dating we began to spend the day with each other constantly by each other's side. I would always show my affection for her. However, when finals were coming...she was then in tears because her friendship was ending..and that she was accompanied by one of her friends which who is a blind and autistic. I wasn't able to accompany her because how much I wanted to pass my classes. So since she left me for the blind guy who's autistic and would always be talking **** to her about how bad her place and how he hates going to her neighborhood is because she lives in the ghetto area of Long Beach. Anyway, she was with this guy for three years. One day she gave me a call that she was pregnant and it was not the blind guys kid. She told me she went to a party and that an old high school friend took advantage of her. Since then her blind boyfriend was super mad and furious that she wanted to keep her. He breaks up with her on Facebook and then runs out to me..she even confessed on how she got the baby, basically someone broke raped her and everytime when she looks at her baby girl, she is so resentful to her own daughter and I said you can't do that...she said she never sees eye to eye with her own baby which is so sad and that whenever she looks at her she thinks about how she got raped and it's so sad she doesn't see eye with her own baby. She want me in her life and the baby's