I recently received child support request forms for a child that I did not know I was the father for. Apparently I have signed an affidavit acknowledging paternity even though I do not recall doing so. The form itself was allegedly signed over 2 years ago and is just now being turned in. Do I have any way to revoke that signature if it is proved to be mine. Also I do not want to be a part of this child's life and have not been a part of this child's life. There is a chance that I am the father but there has not been any blood test or DNA test to confirm that 100%. I don't feel that I should have to pay support on a child that may or may not be mine even though the form is signed, especially since the form was held by the mother for over 2 years according to the dates. It's just now surfacing after I recently had my youngest child with my fiancee. What can I do?