I feel EXACTLY the same way.
If it is not hurting or I dont feel sick is everthing oK??
But no news is good news then we wait until 19 weeks and start getting kicked all day.... sounds good to me!
This may sound silly too but the way I made myself stop worrying was to tell myself only to worry IF there WAS blood.
No blood means it is all good!

Then just count the days to each appointment when doc checks everything is still happening in there!