Babies heart rate

Rachelle • Wed, Mar 30 • Mother to 3 daughters and 3 sons. Mother to 3 angels taken early in pregnancy. Currently pregnant with my number 7.

I'm 17+4 weeks and just picked up my baby on my home Doppler for the first time in which it was strong on the Doppler. His heart rate was 144bpm. Is this good for how far I am