This is a really stunning dress. I purchased based on the measurements that were listed for the larger model (her measurements are similar to mine pre-pregnancy) and purchased a size up. It fits perfectly for me at 23 weeks pregnant, but I did worry the slip/lining under the skirt would not fit 6 weeks from now at the time of my shower, so I am having it let out. The slip is much more fitted than the actual skirt of the dress. However, I wouldn't be deterred by this, as the material of the skirt isn't transparent at all, so an ill-fitting slip could be easily removed if you weren't able to have it let out!