I bought these for work and after a half hour went into the bathroom to take them off. They were so uncomfortable! They squeezed my poor belly in a way that I thought was not only uncomfortable but likely unsafe! I am six months pregnant, third child, but always have a relatively small belly (mine is smaller than my friends with same due date, her second child, but bigger than my other friend with similar due date, first child :) ....whatever. I got a medium, my normal size pre- and during pregnancy. I am 5'8, 160 pounds (ah! don't remind me). The only upside was that the squeezed in everything else as well, which made for a nice silhouette!