I think youre on the right track with your chart. FF has placed dotted cross hairs because you reported fertile CM after O - but I have learned after this happened to me this cycle that it is common and as long as you have your clear thermal shift and +OPK thats all that matters (you could keep BDing on those days as well just to cover yourself though in case your temp taking isnt 100% accurate). OPK's are often only 1/2 positive from my experience. Check out this site: PeeOnAStick.com - on this site she says that as long as at least half of the OPK is as dark or darker than the control line then its +. Ive peed on probably a hundred OPKs in my TTC odyssey and ive only gotten a handful of OPKs where the whole line was equal to or darker than the control line.

Good luck! I too have a history of super long cycles, which are only just starting to sort out after taking about 6 different vitamins a day and a disgusting herbal mixture prescribed by a naturopath.