that's pretty sick dude.

Because of the circumstances, the mother to be is likely to have a harder time with the consequences of a pregnancy. We don't know the details, but depending on what her disability is, pregnancy itself might be dangerous for her. If she's mentally impaired and carries to term, she'll likely have a hard time caring for the child, even as an adult, so the grandparents would have to step in and help with the child. Finally, there's a relatively high incidence of sexual abuse with disabled victims, often because the abuser believes that they're incapable of understanding what's happening and/or unlikely to report the abuse. She could have been raped. That's very relevant.

My mom worked as an assistant to a special education teacher in a junior high when I was little. She said one of the saddest things ever was a particular boy with an extreme case of autism, who would stare at any woman's breasts for hours. He had all the same hormones as any other male, but didn't know what to do with them or have any way of expressing them. He had to be watched constantly. It was a sad situation.