I was 1 week from delivery when my sis got married. I had ordered the dress before I got
pg! They ordered extra material and put panels on both sides of the dress. You could not even notice.
I would wait until the cut-off to order the dress. If you're not
pg at that time, you might be safe with your current size since you won't change too drastically in the beginning stages. If you are, you can go from there. Just be sure to order extra material at the same time you order the dress if they will have to do alterations at a later date that way it will be the same dye lot.