I wear size S in luxe line in pre-pregnancy (Lulu size 2-4 and LJ size XS-S) and it still fits for my 26 weeks pregnant body even though I gained 10kg. Just little bit tight on belly side.
I ordered size M as advise in size chart but I feel it’s little bit more tighter than normal luxe line leggings. I wished I can wear it after pregnancy as well so I have NO complain. It just fit nicely but wish it has more room for the tummy.
But again, I am really happy with the items, the material is so soft like butter. If anyone confuses with the size, I recommend to order one size up than your usual size.