Is your BBT lower if you wake up early?

Question

Woke up at 6am and thought I would likely stay awake and get up - My bbt  was 36.37 but then fell asleep until 8.45 and took again - it was 36.65 - Which temp should I use? Looks like my temp is always lower the earlier I get up. To confuse matters I also had a positive opk this am (faint line yest)

Answer

Took the advice and used the earlier lower temperature - fertility friend now has a filled in blue dot (rather than an outlined one) to show it looks right. Lovely. Here's to ovulating at a weekend!!!

Answer

I wake up at 5am-5:30am on weekdays and 7am-8am on weekends. So I rollover and check then before I get out the bed and just log what it says regardless.

Answer

Use the one closest to the time you normally take it but the earlier one is probably better since you had at least 3 hours of uninterrupted sleep before that one.

Is your BBT lower if you wake up early?

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