Love these tights, very comfortable, good fabric weight for fall and winter. I am 5'2" and size 4 pre-pregnancy and haven't had a problem with them staying up. The belly panel is kinda of funny, the tights ride high in front and low in back, which made me wonder if I had them on right the first time I wore them. ha!
Overall, I would definitely recommend to pregnant women.
These tights are great. They are super comfy, I'm having twins and my belly is pretty big. They fit nice over my legs and most important they are a true opaque black. Other tights I have purchased, from Pea in the Pod and Motherhood are almost grey and somewhat see through. These are nice and thick. Good buy.