Does temperature ALWAYS spike right after O?

I could SWEAR I O'd CD 13 or 14, today is 15. But apparently FF says I haven't yet. Does temperature always always always spike? :-/

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As a general rule of thumb yes a spike does indicate o. However sometimes it may be a subtle spike not a big leap iykwim. Looking at your chart temps I dont think you have oed yet. Your body may have started to gear up to o (hence the cm change) but hasn't yet? I would definately be doing another/more attempts.

Thanks! Yes we will again today and continue e4d.

No, not always but usually. Based on your cervix (as well as temps) I'm inclined to agree that you haven't Oed.

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This is today. Now maybe it looks like I did O? But when? I never hit 98° unless I'm post O.

I did take away my CP notes because I've been second guessing myself... maybe I really don't know what I'm feeling for? :-/

I think you Oed CD15.

Not always and the reason why we need three temps to confirm O is becuase it is possible for one temp in isolation to be wrong or misleading. Even two. It's only by the time we get to three temps that we have a good vibe that it's a pattern and not a fluke. :))

I see tons of people who have the slow rises or no rise until a day or three after O.