I felt my first baby at 16 weeks and I actually felt a few little flutters from the second one at 10 weeks - doctors will tell you that's it's not but as far as I'm concerned, I'd felt it before so I knew immediately what it was. He then went quiet for a few weeks after that and I started feeling him again at about 14 weeks.

The thing about moving babies is that it's not a sensation you feel all the time, so you certainly notice it when it happens, even if it is your first! It never felt like gas, or bubbles or anything else to me...it was a completely different, new feeling and that's how I knew with such certainty what it was

It's awesome, enjoy every second you'll miss it when it's over!