texas, after a paternity test i was ordered to pay $12,000 back support for a 15 yr old child i had no prior knowledge of, isnt there a limit of time to file suit, or period for back supp? i also pay 12% interest. is that fair. total is $380 month, i make min wage. judge said pay this before eat, rent, etc. is that fair. looks like jail for me. thanks to the state for making me a criminal.