My AF is due today, I usually have a lot of cramping and pain in the couple of days before and get a bit of ibs type symptoms. So far nothing. My cycle is 28 days like clockwork (except for one month nearly a year ago when it was 27 days) So I know I'm not late yet, but when could I consider myself late? Tomorrow? or should I wait until the weekend to test? (if the doesn't swoop in before then).