Is ovulation 12-36 hours after first positive OPK or the Peak OPK?

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In the past when I test I can tell which day I ovulated. I’ll get a positive one day, peak the next, and ovulate the following. This month I got a peak on my clear blue and a positive on my opk strip, next day I got a peak with my opk strip, but I really think I ovulated the same day as my peak opk strip.

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