9w2d showing?

Paige
I had a dr appointment a week ago we only saw one baby but I am huge! Can twins hide? I am bigger than my friend no she is about 5 months.. my belly is hard and my dr was amazed that I am already showing. Is anyone else already showing this much around 2 months? I was a big baby when I was born so I am thinking maybe I am just gunna have a huge baby.