After reading many reviews that said go small, I ordered the medium. They cut into my thighs way too much so I had to return them and get the large. The large was perfect!! I'm 5'6" and 30 weeks pregnant weighing 190lbs (I have a very large bust as well - 38FF). I was a size 10 pant before my pregnancy if that helps. I love the cut because the legs are a shorter, more of a mid-thigh length which is perfect for the shorter dresses I have. My thighs don't chafe and I even wore them to a wedding and danced the night away with no chafing issues! Perfect for what I was looking for. So for all those people who say order down a size, I'd say only do that if your thighs are very thin or if you are not very far along in your pregnancy.