I went and had my first ultrasound today.  My LMP was 11/6.  My doctor calculated I was at 7 weeks 6 days.  I had calculated (based on ovulation test) I was 7 weeks 1 day.  Anywho- baby measuresay 6 weeks 4 days.  We saw a flicker in the heart rate but it was only at 84bpm.  I have to go back in 6 days for another ultrasound.  I am a mess!  This is my third pregnancy- the two previous pregnancies ended in miscarriage.  Has anyone else had a low heart rate but it went up and was successful?  Or had it go the other way?