Oh, in the one I saw on TV in a clip that was supposed to be from her website, she *was* on a floatie - you could see it.
Wasn't that picture on the floatie fairly early in her pregnancy? Another thing, the dress she wore when she went to the SCOTUS was fairly loose-fitting and she wore a full-length matching coat and carried a large handbag. I didn't think anything of it at the time, but imagine, now, it was to hide a newly protruding bulge... the media are all obcessed with bulges.