If me & the mother signed a child support contract

Q: If me & the mother signed a contract stating child support cost is $150 every 2 weeks compared to $500 every 2 weeks; does the: contract stand at $150 or do i still have to pay the $500 every 2 weeks? 

A: David’s answer: If the mother files a petition & wishes to have support paid at the $500 amount, the Magistrate will most likely allow this unless the "agreement" was a duly-executed Separation Agreement. That said, I think it's worth your time to bring the agreement to an attorney & have it reviewed.  --  David Bliven