Hi Janine
I too felt definate flutters around the 16 week mark and then nothing at all until Wednesday this week and now he's pretty much kicking regularly every couple of hours. I was really concerned about it but my Ob told me not to worry as bub has a lot of room to move around without you feeling him/her. It is much easier said than done though. All the best for your scan today. Its so exciting hearing the heart beat for the 1st time.