Very nervous

Panda
In March of this year I had m/c. I was supposed to be 12wks but lost baby at 8wks. I naturally miscarried baby at home. 
I'm by surprise pregnant again. I'm supposed to be 11wks 5days but Ob/Gyn seemed concerned today as she attempted to do ultrasound(she claims she's not very skilled in this area).
I'm nervous because 2wks ago midwife didn't hear heartbeat during Doppler now this. I have to go get sonogram in morning with a full bladder but I already know they are going to say baby has passed. I don't want to go through this again😭😭😭😭