Hi all! My MOH could potentially be up to five months preggers at my wedding in June. We were told to order the dresses in December, and she is concerned about not knowing what size to get, etc. She is generally a petite person, but just doesn't know if/how far along she'll be in June. Wanted to see if anyone had any tips on this? Do places let you potentially get two different sizes and return one at a date closer to the wedding? Ideas here? Thanks!