Heartbeat & gender

Zoe.-.V

Just wondering I’ve seeen alot of ppl say a fetus/ baby higher heart rate meant it was a girl and vice versa , idk but I’m wondering what was yall babies before 12 weeks ( if you got a scan ) heart rate n was it a boy or a girl ? Curios to see if that theory is more accurate than I want to believe .ty for commenting in advance ❤️