I measure BBT at 7am everyday
However this morning I woke up to my cat making a noise at 6.15 and had my mouth open. I took my BBT just in case, it was 36.47, other than that I didn't move and went straight back to sleep
My alarm went off at 7am and I woke with my mouth closed and took it again, 36.66.
What one do I go with? Neither would be hugely out of the ordinary