Keen sweets, I think that, from looking at your chart, it likely that you did O on CD 14 or 15, but I think the reason FF won't give you a cover line etc is because of the rise in temp you had on CD8. If you go in adn change your temp on CD 8, it may give you a cover line? (Can you remember what happened on CD 7 or 8 to make it shoot up like that?!)

Either way, I think you have o'd, and it looks like you were doing the right thing at the right time. As always, I am keeping it all crossed that this is YOUR month. xx