Old Wives Tale

Is it true that d only reliable baby gender prediction is by the shape of your tummy whthr it is pointy / round? Can you share the shape of your tummy and the gender of your baby. Cz im curious. I think it's kinda legit for both my firstborn and current baby. Cz if based on cravings, alot mite defer. 🤷🏻‍♀️