My daughter got pregnant by someone she doesn't want to be with. During her pregnancy she married a man and he wants to be the father of the baby. The bio father has said to leave him alone. We were told that since she was married at the time of the birth that the babies last name will be the husbands last name. What other rights does the new husband have as far as being the legal father? What rights does the bio father have? We live in Idaho.