Anyone heard abt the nub theory to predict gender of baby at 12 weeks

https://www.google.com/amp/s/www.goodtoknow.co.uk/family/babies/nub-theory-predict-your-baby-s-sex-at-12-weeks-79866/amp Is urs accurate ? But i am not sure is the protrude thing legs or what? Hahha!!

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Super Mom

Never heard of this before. I used a gender calendar to predict baby's gender. Pretty accurate so far....

not accurate.