Babies dads name is not on the birth certificate but his last name is on the baby

Hi, I have a six month old baby and I gave her my ex-boyfriends name even though is not he's child and now the bioligic father want to give her he's last name. What do I do?

How do I go about adding my son's father's name to the birth certificate?

My fianc? Just left for Iraq this week. We are expecting a baby in November. Since we aren't married how can he be put on the baby's birth certificate?

My situation is that when I was 18 years old I was told by a person that was a family friend that the lady who raised me was not my mother. He said he did not know who was my mother but he knew she was not my mother because she told him she was not my mother but did not go into detail. She denied...

I gave birth to my child but it wasn't my ex husband. We was separated for a while but we didn't get a divorce yet. In child birth certificate, there is no name on the father status because I was still married. Hospital left it blank because I was still married. Now that I'm divorce. I want the...