I personally don't. Both of my kids were/are upper 160s and they are both boys.
No the heart beat for me was low like 130's but I'm having a girl
No. A friends baby's heart rate was fast and it was a boy. I had a friend who had a girl with slow heart rate. And some boys with slow heart rates and girls with fast ones.
My first ultrasound the heart beat was 160 and my second ultrasound it was 150 im having a girl
Nope. My son I am pregnant with now has a faster heart rate.
My first heartbeat was 162 and I'm having a girl 33 weeks now just last week her heartbeat was 155 so in my case it's true!