The correct temp to use is the very first temp you took when you woke up - even if it was an hour early. I'm not sure I understood the progression, but if you did take your temp immediately when you woke up, that is the best temp to take - note the time on FF, and it will appear as an open circle on your chart. If you didn't take your first temp until after you had been awake for a while, then you may not have a valid temp for today.

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