Well it does have a 50% chance of being right, but you would have the same reaction if you weren't pregnant lol x
It worked for me, the baking soda didn't fizz, which means girl. And I'm having a girl!
With ALL of these tests, there is still a 50/50 chance for either a boy or a girl. They are just for fun, and you shouldn't rely solely on this test to determine the sex of your baby.
Its not accurate, its a chemical reaction between the acidity of your urine on the baking soda. It doesn't tell you the sex though, but it is a fun experiment, it can only go two ways :-) x
I havent heard of that how does it work?