I have just found out that I am the father of a one and a half year old little girl. It took a while for my Ex. To get a hold of me because I had moved about two years back to a different town. She knew then she was pragnet but did not tell me. Any how she is running into hard times and needs help, I have signed an acknowledgement of paternity form and now we are wondering how to get me on the birth certificate and also how to change her last name to mine. My daughter is going to come stay with me for a undecided amount of time and my ex. And I both agree it is the right thing to do. Any advice would help, thanks.