Bbt & OPK and ovulation relation

Emma • married, mommy of two angel babies👼🏻👼🏻TTC
So, I've got two positive OPKs throughout yesterday and the day before yesterday (the yesterday's was much darker and the lines on the other one were equal) - and negative opk today, but my bbt from 6am today was still roughly the same as the last previous day, hence no temperature shift. I usually have a shift the next day after the positive test. Have I already ovulated? 
Thanks for answering.

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