I was wearing a 29 pre-pregnancy, and since I've become pregnant, I'm not lifting as much and my thighs have definitely become thicker. I got a pair of 29s, but they felt super tight around the thighs, so I sized up to 30. now the 30 is more comfortable, but because there's no solid waist band, they end up falling down. It's ok, because they're really high waisted, but they would probably look better on me had I stuck with the smaller size. That way, they would've stayed up around my booty instead of falling down. Then again, being pregnant is uncomfortable enough as it is. Might as well be comfy.