WHEN TO TEST?!

Does geritol conflicts with your period?? I use pre seed and geritol all last month. Still no period. Took a cheap preggo test. Is still negative. Shouldn’t the 99 cents brand work if your pregnant??whats too soon to test. Glow shows I’m 5 days late, other app says 10 days!!I’m still waiting on code red,faint line or something. I’m annoyed I hope my period doesn’t end up showing!!!!!!!!!!!