if the dr isn't worried, i wouldn't be either...some people just don't know when to keep their mouths shut lol. i didn' tlook pregnant until i hit 30 weeks then i kinda "popped" after that - you wouldn't have known otherwise x
As long as the doctor is ok with your weight gain and progress, everything is good no matter what people comment :)
I worry about the same thing! I'm 35 weeks and have gained 20 pounds and you can't see my bump unless I wear tight shirts which I am not comfortable doing lol My fiance's family has been rude about it before, but doctor tells me every time everything is perfect with both me and baby so it doesn't make me worry anymore. Good luck to you and your little bundle of joy :)