How much do you think that outdoor temperatures affect BBT?
It's been really hot here lately, and we don't have a/c. I wake up to temp every morning at 6:00AM, but this morning I was wide-eyed at 5:30AM and temped then instead. It just so happens that the outdoor temperature dropped significantly as well last night, close to an 8*C cooler low than it has been all week. I woke up a little chilly, AND a little early. Should I discard this temp?