please look at my pictures. i took FOREVER to pop out! i could notice my little pouch, but strangers didn't come up to me knowing i was pregnant till i was about 27-28wks! by 30 weeks, there was no hiding it ;-) it doesn't mean that your baby isn't healthy and growing. i talked to my doctors about it because i was tired of people saying, "why are you so small??" "you don't look pregnant!" and doctor said not to listen to them. baby is growing at an appropriate rate. some women's abdominal muscles (especially in first time pregnancies) seem to resist the growth, and then, they suddenly surrender and you pop out over night!
Hi, congrats. Dont worry, your going to get very plump, every woman is different, and they carry weight in different places, as long as your gaining weight you should be fine, i have seen women at 18 and 20 weeks and belly dont really big but A**** huge then 5th and 6th month stomache was round, as long as your gaining wt everything should be ok.
By the way, if it makes you feel better call your dr just to ask them(hey, thats what they get paid for)