baby boy heart rate lower then baby girl ?

Nahkeysha • Mother of A 3 & 6 Year Old Boys ! Hopefully This Go Around Is A Girl 💕💅🏻
Is it true that boys heart rate is lower ?! I'm 16 weeks and at 8 weeks my baby's heart rate was 180 then 175 now it's 153 ... I hope it's a baby girl please feel free to add a comment