By choosing him as daddy -- and you did choose him when you chose to have sex with him -- you were stating he was fit. How old is he? How old are you? When did the crime take place? Was he young -- 19 or less? Or was he older? He will be able to have HIS child with him at times unless you can prove he is a danger to HIS child. NOT that he was a rapist. You married him knowing that. You had sex with him knowing he was a rapist. You knew all of that and still chose to have a baby with him.
Hence you don't get to decide that NOW he is not a fit parent. And you NEVER left him alone with his child? Ever? Where was the child when you were taking a shower? On the toilet? Going to the store for milk?
Parents should remember 3 things: Love your kids more than you hate your ex; when you have children the relationship with the other parent is until death; your children determine what type of nursing home you end up in.
Nothing stated by me should be taken as giving you legal advice or forming an attorney/client relationship.
Attorney-GAL in Ohio.
I've removed the knife from my back, polished it, and will one day return it -- long after you think I have forgotten.