I'm getting the antibody test this week. I got a doctor's order through my primary care doctor and am getting it at Labcorp. I was in WDW in February and came home sick. The weird thing about it was that it took forever for symptoms to show up. My mom was sick while we were down there and running a fever of well over 101 and she had a horrible cough. I started with the cough and thought, "Oh, maybe that's all I'll end up with" but then I came home and started getting sick. I never got quite as sick as she did; as soon as I started getting the respiratory symptoms, I started nebulizer treatments and went on oral steroids. I ended up with bronchitis, ended up on an antibiotic, and the cough hung on for a good month.
I will feel terrible if I did have it and spread it, but if I come back positive, there's no way we could have known back then that it was even a possibility. Of course, there's every chance it wasn't Covid either.
I think it has to be ordered by a doctor to be covered. If you just ask for it yourself, it probably won't be covered. I'll check after I get mine done.