Growth

So tonight I did a tour of the hospital I'll be delivering at.. (I'm 34 wks) and it kinda sparked a worry in my mind because all of the ladies that are due right around the same time are a lot bigger than me. This is my first child and also their first child and I honestly thought they were about to pop, but I'm actually a week ahead and I'm no where near as big.. Is my baby growing correctly? I had a doctors visit today and everything looks great on her end.. But I can't help but think that maybe he's just not growing like he should? Please help ease my mind..