Modifying child support after divorce has been finalized

Family Court has an ongoing responsibility to entertain modification petitions, particularly where you accepted less to permit him to get himself stabilized financially.  I'm certain that your judgment of divorce gives Family Court the authority to revisit issues like support.   There is now a statutory three year review of child support obligatios in any eent.  I would file a petition to modify child support.   Your former husband will be required to bring his financials with him so that the judge can assess the proper amount of support to be paid for your family.