My DS that is....him and his ex broke up and he found out she was pregnant when she went into labor and one of her family members felt he should know
He was shocked and confused. He went there and watched his daughter be born. Him and his ex were not on great terms at that point but they werent on bad terms. He was put on the birth certificate and was very active *When I say active i mean he had her about half the time
When she was about 6 months old her mom met a new guy who didnt like DS...he didnt want him around and the ex stopped talking to him almost entierly. He was lucky to see the baby once a month. The last time he took the baby and left.
Of course mom freaked out and called the cops but there was nothing that could be done. This is something a lawyer told him would be beneficial because he would have more chance at getting custody if she was living with him. He doesnt want full custody he is aiming for 50/50. As of now they have no custody agreement at all
ETA: he isnt keeping her from her mom. She has come to see her twice already...I would think she would come more but she hasnt
ETA2: Sorry if all of this is not clear...he got her on Monday. Mom has been to see her twice since then