Scared of Twin Baby Bump !??

Aly
I keep seeing these tiny little moms, pregnant with ONE baby and their big big bumps. All I can think about is how the hell im going to stand up straight, or walk, or not break in half. Is anyone else terrified of having an enormous bump? 
Just to be clear - I'm not concerned with getting big because I will be big and "fat." I'm concerned with daily life, work, and normal activities! Im going to have twice the bump of some of these women!