If you signed an Affidavit of Parentage at the time of the child's birth, you are the legal father. While it is possible to have you found to not be the father, it will take a court proceeding to do so. If you have been active in the child's life through parenting time and support, you could argue for your rights under the equitable parent doctrine. You would be well advised to seek the advise of an attorney specializing in this area.
Answered on Aug 18th, 2012 at 2:12 PM