I am 6.5 months pregnant and was in the market for a comfortable undergarment that I could wear under dresses to prevent chaffing. I wasn't necessarily looking for shapewear just shorts that could be worn under dresses.  I am an athletic person and would say that I have legs on the smaller toned side, but the combination of 90 degree heat and the added pregnancy weight, I found myself chaffing after 3-5 mile walks in the summer heat which was uncomfortable so I bought these hoping they would do the trick for ventures out in summer dresses or even attending weddings. I have not worn them yet but did put them on to see if the sizing fit, the material is extremely soft which is a plus. I can't say how easy they will be to go the bathroom in since there is no pee hole. You have to pull them entirely down to go which to be honest is probably the most sanitary thing to do anyways.  They don't seem like they will be difficult to get off and on. I also ordered a couple other brands and this material was by far the most comfortable.

I went with a medium. I purchased the nude and the black since I have some lighter dresses.  I tried the black pair on first with a blush floral dress and you could not see it through the fabric so I was impressed! I've attached a couple pictures to demonstrate that the black does not show through a shear colored dress. The other concern I had was that I didn't like the flower design on the stomach that is apparent on the pictures. Reminds me of a toddler design and I was afraid that the flower design may show through the dresses.  I tried on a dress and I'm pleased to report that it DOES NOT show through.

I find that when I read people reviews, the measurements helped so here goes nothing:
Height: 5'5"
Weight: 155 (Started at 138)
Pregnancy: 6.5 Months Pregnant.