Fetal heart rate at 9 weeks?

[LadyWireman]

I've had 3 miscarriages in the past so this pregnancy I'm being watched very closely.

6w2d fhr was 105bpm
7w0d fhr was 140 bpm
8w4d fhr was 167 bpm
9w0d fhr was 159 bpm

I had an ultrasound today and the baby measured 9w1d :) is the heart rate low or normal and should I be concerned it went from 167 to 159?

[aluc3y]

I wouldn't worry! 159 is great! And it fluctuates from when they are awake or sleeping.

[susancae]

All my kid's rates were below that. 148 was the highest I've had personally.

[infringe]

I wouldnt worry, 159 is a great heartrate :)