I’m currently 4.5 months pregnant. I wanted underwear to smooth out my bump but also not be too tight. These are perfect for exactly that. They almost act like Spanx without putting pressure on your growing bump. I bought a size small as that’s the only size they had available. I’m a size UK 8-10 in trousers and they fit me perfectly. The only downside is the material. It’s very thin therefore I also wear underwear underneath. Wish they had the other sizes available as it would be amazing if I could continue to wear these until full term.