Ksquared, I read somewhere in the last couple of days (I think in an ff article) that while most women get the temp shift to confirm o, not every single person will. As long as cm and OPKs pointed to o, I'd just go with the assumption that it happened then. Maybe keep charting temps to see if anything changes, or do you have previous months to compare it to?
But, the part about you should be over 98 now, is that just what you have personally observed in the past?
I only ask bc my low temps are in the 96 range and my temp shift only brought me up to like 97.1. It has stayed over 97 for 4 days, so ff has that distinct red line, but it is still far away from 98.