As all pregnancies are unique and individual, maternity clothes are designed on a normal pregnancy weight gain range. Although it can be tempting to order a size up, only do so if you prefer a relaxed fit or if you have a very large bust.

What size should you buy when pregnant?

Maternity sizes work the same as regular clothing sizes. That is, if youre normally a size small, youll still be a small in maternity sizes. Same thing with numbered sizes: If you were an 8 pre-pregnancy, look for items in that size.