I’m on CD4 and this morning shortly after I woke up, I felt a gush if something in my underwear. I thought it probably was blood since I was just finishing up my period. Nope, definitely a lot of ewcm and not a hint of blood in it. So I decided to get some opks at the store and took it a little bit ago and it is already super dark. Normally right now the test line is really faint. Is it even possible to O on cd5 or 6?!