I really hope so Creative! I was like, "whhaaaat?" this morning. I felt really hot though while I was taking my temp, so I might've been taking it in the middle of a hot flash!
Not sure why your CP changed in such a short amount of time. Were you in the same position both times? I think checking it at the same time, in the same position is important. That said, I stopped checking mine, because I don't feel like it gives me super useful info after O. It can be low or high, or firm or soft, and you can be prego or not.
Also, Creative, about the monitor - I know that you are frustrated with it this month (me too) because it missed the first day of our peaks, BUT I do still think it gives us valuable information because it tells us about our estrogen surge, which OPKs do not. And considering that the 2-3 days before O are the most important days, the monitor does help give a little advance warning. In my opinion... I am still going to use mine, but just realize it's not perfect, and I'm going to keep using all the information at hand - CBFM readings, OPK readings (from my first high on), CM, temperature - to help time BDing.
Jchic, I agree - I think today is O day!