Has anyone had a successful pregnancy after having a low fetal heart beat at around 6 weeks 5 days? I went in Friday for an ultrasound and my baby's heart rate was only 90-91.. My dr said it was low and to "prepare for the worst." And scheduled me for an ultrasound this Thursday to see what's going on... So I'm just curious if this has happened to anyone else.. Good or bad out come stories would be nice. Tia.