AF was due on Friday and still no sign. Been getting negative tests so far. I took an IC this morning and think I can see a very faint pink line which came up within a couple of minutes. I still have fmu so tried a First Response (not FRER) and I think I can see the very faintest of lines on there. I've got some FRERs due to arrive today but they're not here yet. The only other test I have in is a Clearblue digital but am I right in assuming that won't show up positive yet if the others are so faint? Am I best to wait for the FRERs to arrive and use the digital in a couple of days if AF hasn't arrived?