So.. AF is due today. Yesterday I got a light brown to dark brown spotting which I normally get before AF starts. My AF always start with spotting and turns into heavy flow within several hours..

Thought I am out again this month. But this time it’s a bit strange, it doesn’t turn out to be AF .. it gets lighter and lighter instead .. now it’s only there if I wipe. And AF not here yet.. Could it be Implantation bleeding?