Thanks for posting,
All I can tell you is exercise a bit of patience. There is no cause for alarm yet as pregnancy
is still only 6 weeks and 1/7 days (this day, 2nd March), which is still too early to decipher the heart and given that you probably even did it sooner than today, it is normal that the scan shows no heart beat.
You should just get to the appointment (you indicated 1st March which means I am probably late writing you). Heart beat becomes clear as from the 12th week of gestation and I hope you can be patient and think positive. Remember that stress
alone can induce a miscarriage
. Have some good rest and practice relaxation and/or meditation
Hope this will help