@Sara1988 Look at it this way, if you weren't feeling them move a lot you'd be feeling concerned about that - so at least this way you are feeling baby wriggling around and not stressing about lack of movement.
I'm absolutely with those who are still feeling worried/uncertain even after the 20 week scan - mine was over 3 weeks ago now and it feels like an absolute age ago that I saw a little baby bouncing around all over the screen. I definitely feel like movements have ramped up a bit for me in the last few days, but it's still not very consistent, some days I feel a lot and on others it's just odd flickers and flutters. I'm definitely getting bigger though so just have to keep reminding myself that something must be going on in there!