I know there's a few on here who were convinced you had it. Here's your chance without waiting to be randomly selected by your health department for testing. Obviously there is the chance for false positives and false negatives. You can schedule a blood draw at pretty much any major lab company in the US. Here's two that I found that can get billed to insurance. And it's not wasting resources so people please don't start that argument.
https://www.labcorp.com/antibody-testing
https://questdirect.questdiagnostics.com/products/covid-19-immune-response/b580e541-78a5-48a6-b17b-7bad949dcb57