Dragonfly- hoping O is around the corner. CD 15 looks pretty dark to me! As for chart, it waits for 3 higher temps to confirm that you've O'd.
Guess it's O watch for all of us. AF hit me full force at 18 dpo. Much later than usual. And, sorry if too much info, but I had some grey/white stringy discharge. Maybe a chemical pregnancy? I also just feel crushed, don't know if it was justhigh expectations, but if feels like an emotional rollercoaster much more than usual.