Weirdest experience yesterday

So I'm 10 weeks and 2 days pregnant. Last night, while I was laying on my right side, I could feel a small thumping in my stomach. I know there's no way it was baby because it's so small. Out of kind of "habit" I cradled my stomach and it stopped.

I'm not sure what it was or why it stopped when I held my stomach. I thought maybe weird gas cramps but nope. Anyone else experience this?