Okay, today I tried out my at home Doppler, I’m currently 14 weeks and 3 days. For my last two appointments the last one being I was 10 weeks and 5 days the baby’s heart rate was in the 150s. Today when I tried the Doppler the readings seem pretty low, all have been between 85-90 bmp. Is this normal or should I be concerned. After reading some things on google.. which I know isn’t the best place. This doesn’t seem normal. Should I contact my doctor? I do have an appointment in a week but is this something that can wait?

Thank you!