Deciding that you need to take legal action regarding child custody is something that you probably didn't take lightly. If you are in that position, chances are good that you felt the need to protect your right to parent your child. We know that no parent wants to think about having to fight to be able to parent their child.
Once the initial child custody order was established, you probably breathed a sigh of relief because the battle was done. While you might not want to think about it right then, you might eventually have to head back to court to get the child custody order modified.