I'm a bit embarrassed to ask, but I'm gonna ask anyway!

Do any of you ladies, mainly plus size mommies wear anything special around your bump yo make it look more round? I've heard something about a belly band but I can't seem to find it anywhere. Any advice would be greatly appreciated! I'm a big girl, about 290 & I'm afraid when I get further along I'll just look like I've gained weight instead of growing our rainbow baby! I'm currently 6 weeks & I can feel a difference in my lower belly but no one else can other than my hubby.