Legal Question in Family Law in Illinois

Unless and until a court vacates the order, yes, it must be paid, no matter what the results of the test are.

I believe your question is whether you have to pay after you find out the results and the results say you are not the father. The answer is probably not. If you were married when the child was born, you did not sign a VAP. Thus there is only a 'presumption' you are the father. That presumption can be overcome with DNA test saying your not the father. Then you would be off the hook. There are many rules regarding support. Feel free to contact me if you have any more questions.