At the risk of sounding obsessive (who? MOI?! ), please could you all stalk my charts below and tell me which you think is most likely? It doesn't make much difference to the outcome of the cycle (obviously) but it makes quite a big difference to the stats and predicted ov days. I've also asked the FF guide, but thought I might get a more helpful response from you lot! ok, so there are three scenarios, one is that the December cycle was anovulatory (as per Advanced setting), the second is that I ov'ed on CD24 and had an unusually short luteal phase (11 days) with on/off spotting from CD7, and low temps - poss low progesterone? This is what the Research detector thinks. The third scenario is that I ov'ed on CD21, with a normal luteal phase of 14 days, on/off spotting from CD10, and low temps. A couple of you had thought this, and the FF guide said a few days ago that CD21 and 24 were both possibilities. By the way, I think the CM description is a complete red herring. It was pretty consistent all the way through the cycle, but may have been EWCM as much as CCM - opaque and creamy-coloured but stretching about an inch to an inch and a half (normally my EWCM is much stretchier so I was hanging out for that...). I've also thrown in the chart in fahrenheit, just for a laugh this is what the charts look like: Fahrenheit version (shows that temps definitely rise!): Anovulatory CD21 CD24 please vote, and thanks for looking!