Old Wives tale

I just wanted to share an old wives tale that my mom always told me growing up about figuring out gender. It was correct for all four of my moms children & has been correct for mine as well :) if you look at the back of your child's head at their hairline if it's a point your next child should be a boy if it it curved the next child should be a girl. Now again it's an old wives tale so it's not 100% guaranteed but I never see anyone else talk about it so figured I'd share