I had a VERY positive opk on cd 11, with them getting lighter after that. However, my temps didn't make a really great move until 3-4 days later. Oh, and on the eve of cd 12 I had some nasty O cramps, even had to take Tylenol. These lasted until the morning of cd 13.
Around this time, we quit burning our woodstove and used heaters, which really decreased the temp in our house. Most morning I'd wake up to it being anywhere from 70-74. It was now around 66. Only 4-6 degrees, but it felt COLD! My temp on cd 15 was 97.87, but I also woke up at 5am instead of 6:30. The adjuster put my temp at 98.15. However, I simply discarded it. And then that day I felt funny cramps again.
I just can't figure out when I o'ed. Usually I ovulate the day or day following my positive opk. And this one was one of the most positive I've had, yet my temps didn't shift really great until later. We have now been running the woodstove again, probably why my temps the last few days are way up there.
Going from all that

when do you think I o'ed? Should I keep FF's O date?