
Quoting
Neal1421
No, you cannot just put your fiance's name on the birth certificate, you would be committing fraud if you did.
The information you recieved is not legit. You will not be able to his rights terminated by putting it in the paper. At this point he has no legal rights or obligation to the child as he is legally not the child's father.
You must first legally establish paternity. File with the court for a paternity test.
The court isn't going to let your fiance adopt the child though. Depending on your state's guidelines you will have to have been married for a certain amount of time.
Once you have been married that specific amount of time, if the child's father is willing to terminate his parental rights your then husband may be able to adopt the child. If the child's father is not willing to have his rights terminated, then you must prove to the court that it would be in the child's best interest to do so.