There are several factors which may affect your child support obligation, such as any amount you are paying for the child's health insurance (for the child), day care costs, uncovered medical expenses (for the child), health insurance costs for you (which are treated as a deduction of your income), as well as the number of overnights. If any of the above, or your Ex's income has changed, your child support obligation could change as well. Although, there is a caveat. This change must have occurred since the last order awarding support was entered and must be substantial, unforeseen, and involuntary in nature. We usually do not offer free consultations, but I would be willing to make an exception for your case.