any petite mommies out there?

i really hope no-one takes offence at this post as it is really a genuine concern...
im not super skinny but i am a uk size 10 
im finding that most girls here are posting their bumps and bellies already and im here at 9wks and i havent changed shape at all! should i be worried or am i overthinking things. 
if it wasnt for my previous miscarage i probably would be celebrating