I never was order to pay child support nor asked by the mother ;child is now 23,she was adopted ,so she says, at age 4,I didn't t know she existed,I'm a presumed father ,borned 10 months after the divorce, divorce decree says not pregnant or no childern (1987); I had never seen the ex wife to date(2012),I get a call saying I was told you're my dad,I'm I liable for any child support? If so to who ?ex wife or child? State of Oklahoma