No heart beat

Edna • Edna & Luis
Based on MLP I supposed to be 8 weeks 4 days today. I went to see my doctor yesterday he did an ultrasound and we couldn't hear a heart beat. He did a trasvag u/s we still couldn't hear a heart but he saw yolk sac and no baby and he measured me  at about 6 weeks. He thinks it might be a miscarriage :( 
He send me to do bloodwork and my HCG levels are 69553 based on my lab results. I'm going in tomorrow to do some more. At this point I'm very confused, sad and the waiting game is killing me because I don't know what's going on. I'm hoping he's to small that's why we couldn't hear the heart beat but at the same time I'm very scared. Is anyone out there going through this? 
Or any thoughts I would love to hear them.