I tried it last pregnancy and one day it would fizz, the next, it wouldn't. So I think its like any other gender predictor. There's a 50/50 shot of it being right.
Homeschooling Momma to 18 yo DD
, 15yo DS
, 13 yo DD, 5yoDD,3 yo DD, 1 yo DD
, 6 angels I'll get to see in Heaven one day, and expecting #7