I feel the same way yet I have had 2 scans. I opted not to go back for my 12 weeks scan cus the 10 week one showed all was ok but now I wish I had.. I went to the Dr last week as I had some spotting and she said she wouldn't even try listening for a HB before 16 weeks.. I am sure I have heard the HB earlier with my other pregnancies..

I go back again in 2 weeks so hopefully she finds it then.. otherwise I will ask for a reassurance scan.. btw I am a huge worrier