Don't understand it

I just don't understand how some women can be showing so much at 16 weeks . It looks more likely they are 30 weeks. Of course people are going to say "every woman is different." "If it's their second, third , etc. child , they're more likely to show earlier ." "Some people are carrying multiples." I have seen WAY too many women with huge bellies at this point . Sorry, but I honestly think people are just purposely poking their bellies out . The baby is the size of an avacado at 16 weeks , so their is no way your belly is that huge !