No you don't need to hire a attorney.
Call child support, they'll give you a case worker that handles your file, I think by last name A threw Z, tell them you haven't received it, they'll file a judgment of contempt.
I know several women that do it here in Wisconsin. It does have to a certain amount of time or payments before they can, but in any case your report is logged and creates a paper trail of late payment history for him.
hope that helps.