Let's test the theory. those that know the sex what was your heart rate? Mine was 140 today at 16wks! she said anything…

My boys are always right around 164!

Mine was always in the high 150s/low 160s and I had a girl

My last girl was 135-145 consistently

My older 2 were 145-150

Heart rate is a myth. My whole pregnancy heart rate is 170's and im having a boy.

Yeah my daughter was always 150+

Both my son and my daughter were higher than 150.

Last week my babys heart rate was 162 a d I'm having a boy. Every time weve checked his heart rate it's been over 152

My boys heartbeat was always 150-160 😊

My boy was 170 my girl 140

My boys 140 my girl was over 150

So it’s safe to say, going by heart rate isn’t a reliable prediction

Mines been very steady to 140 it’s a girl.