I usually O around CD11 or 12. I started to get a dark line (not as dark as the control) on CD9 and it never got any darker just became light again. Well I have been taking OPKs every day and it's getting dark again today at CD16. Do you think I still have a chance of O this month??? I sure hope so it's been a horrible month so far! If I don't get my BFP this month I start IUI next cycle. That is if my doctors office ever calls me back. This has been by far the most stressful month of TTC for me so far!