Or just wind?! 
I'm 12 & 5...last week I had a weird feeling (almost like little bubbles popping) on my left side- I thought it must just be wind or something but when I went for my scan later in the day, the baby was exactly where I'd felt the "bubbles".
I had it again last night and it almost felt like the bubbles moved from left to right and I wonder if it could be the baby having a wiggle around? This will be my first child (though I did have a mc at around 12wks before) and everything I've read says this is too early to feel anything but the "bubbles" seem similar to other descriptions I've seen for early movement?