bump size.

How is ur bump size at 21 weeks? Is it suppose to be very big already? Or just a cute bump?(others can still tell im preg tho) when will ur bump start to grow fast? I am sick of my colleague telling me that my bump is small. Its like everyday i have a non preg colleague comparing her flabby tummy to mine. Im offended. I am skinny pre preg to begin with but ive been gaining alot recently from my preg eventho i dont snack alot after meals. ?‍♀️