Went for our ultrasound today Baby measured 6w 1d, we seen fetal pole and yolk sac but no heart beat yet. Has anyone else experienced this at 6w 1d? Of course we are worried and just curious if anyone else had a similar story? Thanks in advance.

P.S. my husband and I as well as the ultrasound tech thought we seen a flickering but then she couldn’t see it again after that. Or she said it just might be slow? Is slow bad though I’m so confused and wish we had more answers.....