When I was pregnant with my son (he's 2 now), I used my therapy vest right up until the end. It wasn't always so comfortable because you feel like a whale being squeezed, but it did the job. This time around I was proactive and ordered a larger vest size for when I'm at my biggest. Until then, I just gradually adjust the straps as I grow. Hope this helps <img src="i/expressions/face-icon-small-smile.gif" border="0">