Has anyone tried the Baking Soda Test and it was Correct?

[MrsClark24]

Baking soda test worked for me, it said girl and I had a girl!

 

[mazndave]

How much fizz is classed as fizz?! Did it last night and nothing, did it this morning and had a thin slight froth on top (more like a cappucino than fizzy pop lol) Also, is baking soda bicarb of soda or baking powder in the UK (I used bicarb)

Find out this weekend what we're having (hopefully!)