Home pregnancy test

So I'm new here , my names meghan  I'm 21 ttc for #2 af is due on the 23 . But tonight "just for fun" did the home made pregnancy test , it's where you add alittle bit of bleach into a cup of pee , well it turned out to be neg ( i think) bc it didn't bubble like crazy just one layer of fizz and then it disappeared .. Do you ladies think I could be pregnant and that the homemade test was false?? I've been cramping bad , very tired, lower back pain , and moody! Help please!!