sonogramIf you've made up your mind to find out the sex of your baby, the 20-week appointment, where you learn if you're having a boy or girl, can feel like an eternity away. But a brand new method/wives' tale called Skull Theory might reveal what you're having at one of your first sonograms.

Skull Theory apparently gained traction from pregnancy message boards, where moms-to-be post photos of their early ultrasounds, and other women guess what the sex of their unborn baby is. There's a belief that if the baby's head has a larger, boxier forehead, it's likely a boy, and if the head is rounded, it's a girl. The origin of this practice is believed to be drawn from anthropological studies of skeletons. The foreheads of male skeletons tend to be more prominent, whereas female skeletons are typically more delicate and rounded. But the problem with using this as a building block to determine your baby's sex is that this method applies to adult skeletons, not baby ones. These differences tend to develop with maturity.

Kristina Killgrove, a bioarchaeologist at the University of West Florida, told LiveScience, "It makes no sense. Until you get to maturity or at least puberty you just don't get these sexually dimorphic features of the skulls in males and females."

So, bottom line, Skull Theory is more entertainment than an actual medical belief. But hey, no harm in yet another sex guessing game. There are plenty already out there -- the placenta placement one; whether you're carrying high or low. What's one more?

So, go ahead ladies. Analyze those early ultrasound photos 'til your heart's content. But remember: While you may be able to tell if your little one has your husband's nose, you likely won't know if that nose belongs to a he or a she.

Did you find out the sex of your baby?

 

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