Im 55 and 35 weeks pregnant. I ordered A medium and it fit perfectly fine. The top was a little low cut for me even with my new maternal boobs. But its nothing a safety pin couldn't fix. Got lots of compliments on the dress at Easter. I didn't wash it before I wore it. Everyone was rubbing my belly and the dress was pulled a LOT afterwards but it went right back to normal after I used my pill remover on it. Havent washed the dress yet so I cant speak to that.