Skull theory vs Nub theory

[PrincessMommy]

So I commented on a thread about nub theory yesterday and it closed up- Guess I explained myself wrong cuz there seemed to be some confusion. I didn't mean there is a connection between nub and skull. I just meant I used the skull theory last pregnancy and am using the nub theory this time Here's the difference in case I confused some peeps

Skull theory- https://genderdreaming.com/forum/ul...-shape-theory-early-gender-determination.html

Nub theory- https://www.parentdish.co.uk/2009/06/03/nub-theory-baby-gender-prediction-at-12-weeks/