Biologically he's the father, he's not listed, now he says he wants to see his kid
I am going to try to explain this in as short a version as possible...
A girlfriend of mine was married for 6 weeks, her"husband" was still sleeping with his former wife. My girlfriend did indeed get pregnant, but they divorced very shortly after the conception. She has met another man who signed all the paternity paperwork, and is listed on the child's birth certificate as being the father. She spoke to the ex husband while she was pregnant, she told him that she understood he had 4 children with his ex wife and if he wanted nothing to do with HER child that was fine and she'd understand. He agreed he just wanted to "let her live her own life and move on". Now all of the sudden she's received a message from the ex husband saying IF the baby is his then he wants the baby to know him, his (ex) wife (whom he's remarrying) as well as HIS children.
Obviously he'd have to petition the court for a paternity test to prove paternity, since the father listed is not claiming the child is NOT his... but what really happens when someone says "HE'S NOT the father, I am " ? And what can she do to protect the bond that her son has with the man who was there during the pregnancy, the birth and who's wanted this child his whole life and is raising him ?