Is it better to go by your opk test, or your bbt chart?

opk test, or your bbt chart?" />
I just noticed that glow has me only 3dpo, which seems like it's going by my bbt chart. I got my only positives (2) opk the day before the huge spike in my temp. Either way it's only 1 day, I would still like to be sure though. Thanks!!!

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