The baby has no heartbeat.

When we went for our first ultrasound 2 days ago the US tech told me the baby has no heartbeat and measured at 6 weeks 4 days but I should be just passed 9 weeks now. It felt like a trap door was opened below me and I was falling uncontrollably. 
Not sure where to go from here or even what to tell everyone. I will most likely need a D and C as my body isn't realizing the baby has passed away and I haven't had any bleeding at all. 
 I feel like people will think I shouldn't grieve over this baby as I never got to hold the baby and am only a little over 2 months along. Any advise?