Baking soda test?

Arianna • With the love of my life and mother to our handsome little boy ❤️
Hello, I heard that if you take baking soda and your first morning pee, you can determine the gender. If it fizzes, it's a boy and if it doesn't it's a girl. Has anyone tried it and it was accurate? How far along do you have to be to do it? Thank you!