Gender based off heart beat

Trinika

Who thinks the heart beat can tell you the sex?? I had 2 girls already and both was always in high 170s plus... This pregnancy at 9 weeks exact I was told 171 hbpm so idk I'm really hoping for a boy this time but it sounds like a girl????I am now 11 weeks but haven't checked the hbpm again yet. What was your hbpm and sex of your babies??? I need hope over here lol