Is it common to see a gestational sac and yolk sac via transvaginal ultrasound BUT no heart beat at 6 weeks 3 days?

I we for a transvaginal ultrasound yesterday and they couldn’t see a heart beat. I didn’t get to talk to the doctor and the tech didn’t say much. Is it normal to only see the gestational sac and yolk sac but nothing else?? I should be 6 weeks 3 days according to my numbers...

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