Looking at your chart I do not think you have ovulated....I am thinking that you may be having an annov cycle and that AF is trying to make her appearance but since you didnt ovulate there hasn't been that sudden drop in progesterone to trigger full on af......I would say give it a couple days and if she doesnt show full force call the doc, get a progesterone test to be sure that you havent ovulated yet and get yourself on some prometrium or some sort of progesterone supplement to get af to come.....then start next cycle fresh.....
See without the sudden progesterone drop your af isnt getting "clear" signals its time to come but it knows its close and that is why you are spotting kwim......you wont get the progesterone unless you ovulate or take a upplement for 10 days (sometimes shorter)......
I definately do not think you ovulated however (HUGS).....
Never ever give up girl