12DPO BBT Spike

April

Hi y’all, can you help me analyze my bbt chart? I’ve been having a lot of early pregnancy symptoms (nausea, sore breasts, crying more than usual, cramps off and on, back pain) and then today my bbt spiked up by a full degree Fahrenheit. However, still no positive pregnancy test. What is going on here?

I have a 25 day cycle and ovulated on cycle day 9/10.

Here is my bbt chart:

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