Baby movements... or just dinner?!

For the past few days I have been noticing strange fluttery type movements in my tummy. The first movements of a baby are often described as 'like bubbles popping', so I have been on the lookout for this sensation! However, what I've been feeling this week isn't quite like bubbles. At first, I couldn't quite work out whether it was just my dinner sloshing around (although without any stomach gurgling), but now I'm starting to wonder whether I'm actually feeling baby doing small somersaults.