Well I am not sure with measurements but I think its supposed to be half and half. And if it doesn't do anything its a girl if not a boy. Mine fizzed a good bit.
I think i put too much pee or does it matter...and is it suppose too fizz allot?? I'm almost 17 weeks ifthat that materstoo
I just put baking soda in the bottom of a cup and then peed in it.