Yes, Heather has a good point...lots of things can affect when you feel baby. I'm glad you are feeling better after finding DS's info and hope you start to feel those little movements soon.
I JUST started feeling movement the last couple days... so it was 1 day shy of 17 weeks this time for me... right in the middle of my "range" which has been 16 -18 weeks! Hang in there. It should be soon Patience!