Looking for some help and advice. I’m just off the mini pill cerazette to be exact I stopped taking it in October and bled 25th for 4/5 days, my periods are usually regular always within 28-32 days but I’ve been experiencing mild cramp in my lower stomach and back ever since last week (the time I was due) which made me think my period was coming but I’m now 4 days late as my period tracker app has told me, I’ve taken 4 tests now and all BFN so not too sure what is going on? Anyone able to help?