Should I be concerned?

Anne
I've been trying to stay calm but since my appointment on last Wednesday I can't stay calm. I was 11 wk 6 days on the day of my appointments and they couldn't find the heartbeat, the doctor wasn't concerned, she did a pelvic exam and said I measured between 11 and 12 weeks, which was right on. I just..I'm freaked out what if my baby died on 11 weeks 3 days or something so that's why they can't find the heartbeat but I still measured right. My whole pregnancy has been really "symptom free" (peeing a lot and sore boobs) so it's just concerning to me. And I still can't find the heartbeat on my home doppler. They should have been able to hear it right?..