'Chinese Gender Calendar' Predictions

[VeryNewToAllThis]

Hello!
Has anyone used the traditional 'Chinese Gender Calendar' predictor? I heard about it for the first time on my pregnancy app so had a google and a go! You need to know your conception date and it's calculated from that and your birthday.
It's given me a girl. Most nub and skull guesses have been 50/50 boy and girl. Perhaps a slightly greater lean towards boy.
I'd be interested to know if anyone else has used this and it's been accurate?
I'll post my result along with my 12 week scan photos for nub and skull comparisons!
My 20 week scan is Friday so I'll update with the result then!
Thanks in advance 😊

It’s wrong for me unless two sonographers have got it wrong! Mine predicts girl but I’ve been told I’m having a boy. I also tried the nub theory and it was wrong but I didn’t ask on here at the time

It was right for me! Just confirmed a girl on gender scan

Was wrong for me both times x

It was wrong for my first pregnancy, said my dd should have been a boy.
It says girl for this pregnancy but I think I’m having a boy.

From the nub on that scan I’d have gone with boy.

The Chinese gender prediction was wrong for ds1 but correct for my younger two children. (It’s clearly a load of nonsense though 😁).

Mine said boy, in fact I think all old wives tales pointed to boy, but I'm having a girl.

Mine says girl and I do think I'm having a girl, but it's wrong for one of the children I already have!

It was right 3/3 times for me!

It was wrong for me 2 out of 3 times but nub theory Facebook group were spot on both times I asked. As long as your scan is 12+5 to around 14 weeks it’s pretty accurate.