I don't Think so but a lot of women would argue and say it is, though I do believe it may be possible around 13 weeks and even that is pushing it (at 13 weeks your baby isn't even quite 3 inches yet!) and though a lot of women say it feels nothing like gas, to me that's exactly what it feels like in the early stages which is why I'd be more inclined to think it's probably just gas this early on. There have been many time when I wasn't pregnant and I'd have a flutter in my tummy that felt exactly like it felt with a baby inside-just my opinion though, no offense to anyone!