SallyJ: Yes the test line was very dark in comparison to the control line. CM drying up.

Principessa: 4 +ve OPK over 5 days.

Just finished a night shift so temped at 1.30pm today, lower than pervious 3 temps.
I didn't get a rapid temp drop after AF came, and due to fairly high temps at the start of my cycle FF is waiting for a temp around that level to identlify that I have O'd. I'm starting to think those temps might be squewing my data. During that period I was in Borneo, it was very hot and humid and also thinking about it I got a 24 hour tummy bug on CD1 (wrong end for nausea thought, lol). I don't think I can rely on the data I have collected. I'm just going on gut instinct that I'm 4DPO.