I am a size 2 on a fat day. I found a dress online and the SMALLEST it comes is a size 14. If I bought the size 14 and had it altered, would it look ridiculous being taken in so much or can they do that and have it still look normal?
2 to 14 is a BIG jump. By the time you got it to the right measurements, it wouldn't be the same dress or fall properly without a LOT of work on your behalf. I would just keep your eye out for something similar.