I really like these underwear. I am 5'3 and about 145 lbs with  40' hips. I'm 30 weeks pregnant.  I purchased the Medium size, but they were a tad snug. I really like the way they fit, but I need to go up in size as my waist is going to grow and I want to make sure that as I get bigger they are not too tight. I'd definitely recommend them for pregnancy if you are looking comfy underwear during your last trimester!