Go to court, start a paternity, custody and child support action. As part of that process, you will ask the court to order you and the child to take DNA tests. If it proves that you are the father, then you can ask the court to put your name on the birth certificate, give you custody and require her to pay child support. That latter may or may not happen, but it doesn't hurt to ask. Call the Idaho State Bar for a referral.
Answered on Feb 12th, 2013 at 10:05 PM