I initially bought these in size Small at 22 weeks (belly 38 inches, hips 41 inches), and they fit perfectly. However only 2 weeks later the thighs were too tight, and it may be because I am more of a pear shape. Shrank a tiny bit in the wash as well. So then I bought them in medium which are very roomy right now (at 25 weeks) but I think I will grow into them. If you have smaller thighs I would recommend the small. I am 5’6” and length is fine with Dansko clogs, after washing. Also, NOTE: there are three different Cherokee maternity scrub pants on amazon - these “knit waist” ones are the most comfy (I tried them all).