I started showing quite early, and now I am 30 weeks I am getting mixed responses.. within 5 mins of each other I can be told..

"Gee your tiny for 30 weeks"
"What a cute little bump"
"Thats a nice size bump, all out in front" or then
"OMG are you sure your not having twins"
"Geeze your huge"

I cant keep up, so I just smile and nod.. but I swear it does depend on what I am wearing as well! But everyone def just has to share their opinion!