miscarriage or what?

Elina
I thought I was 8w3d pregnant and went on my first prenatal check up yesterday. Doctor couldn't find a heart beat and said it rather looks small to be 8weeks+. He asked me over and over again if I had my dates right and I'm sure I do because I wrote down everything for menstrual, to conception to ovulation down. 
He sent me to get bloodwork done and just got my results. 
Pregestorone is 7.5 and Hcg is 33,000. 
He's saying at 33k he should have seen a heartbeat. And 7.5 is low. 
Can anyone give me advice or opinion please