movement at 11 weeks?

Emily
I know it's not common to feel movement this early. But I am 11 weeks and my first pregnancy. I've been home sick all day with a sinus infection, I was laying on the couch, worrying about my next doctors appointment and I SWEAR I felt this tiny little tumble low in my belly. This did not feel like gas either. What do you guys think? Was it baby or gas?