This is my first baby so no idea what/when to expect baby's first movements. My pregnancy "bible" says "gentle flutters" for first timers towards the latter end of 16-20weeks. But I just felt what I can only describe as drumming your fingers on the table?! But really quite hard, enough to take me aback, and about an inch or two to the right of my belly button. Could this be baby or some really bizzare gas bubble?! Please excuse my ignorance!!