I got the same at 12/13 weeks, coz I was bloated.
She was comparing me to her daughter...It was my FOURTH pregnancy! Her Daughter was on her 2nd baby, 7 years after her first. She was still asking close to the end if I had my dates right & I really wasn't all that big! No bigger than her daughter. (You probably saw my pics)

She was the only one though. Everone else told me I was tiny, evenn though I didn't feel it.

I think your belly is perfect Its not big, just looks like he's got his butt poked right out