Womb music Doppler

M

Who has tried this Doppler? How soon were you able to hear your baby’s heart beat? I am 10 weeks and 2 days and I hear nothing. I’m starting to worry. I had s scare 2 weeks ago and went to the ER and the heart beat was 170. I haven’t heard anything since then. I go to the doctors Wednesday and I’m scared to now. ☹️