So 3 days ago I got a very very very faint bfp, the next day it was a lot darker and noticeable (didn't have to squint) today I took another test and it was negative. Not sure if it's because for this particular test I didn't use fmu or maybe I had a chemical. My period isn't due till Saturday. I'm so scared that I was be devastated. This is actually my first month TTC and I'm so worried.