I was to start on the 12th too. I was 4day late. AF showed up on Wednesday very different this time. Very light no cramps and breast still sore. Nt sure what to think. I am alway heavy and cramp the first day then by day two AF is about medium flow then by day 5 just light done by day 6 -7. I tested day after AF was due test was negative nt sure if I should test again or count this as my cycle.