Some are telling me skull theory or nub theory .. I have no idea about any of that.. I knew about the HR thing but also know friends who had boys at HR of 178 168🤔🤔🤔😂! Thanks though

I'm just going by the hr they say higher girl lower boy otherwise I don't know how to tell just looking did u try the pencil trick?

☺️☺️ i am so confused! 😊😊😊