Heart beat gender indicator?

I’m currently pregnant didn’t see the doctor yet but I have an upcoming appt I should be 5 weeks tomorrow but with my daughter her heart beat was 121 at 6 weeks ... what was the heart beat of your baby and the gender? I’m anxious to hear my baby’s and if I see a pattern I’ll know which gender I’d think it may be lol I’m thinking maybe lower than 160 is a girl and higher is a boy 6-8 weeks ..? I know it’s a myth ... I just want to have some fun to pass the time ☺️