My sister, when pregnant with her first, was told all the time she was huge. She was so sick of it. The baby was overdue and she just felt so big and over-full.
After a few days break from her morning walks (to finally have the baby), she returned to her local park pushing a pram. One guy, who said hello to her every day, said "oh, did you adopt a baby from overseas?" He had never noticed her bump!