Ovulation?

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For the past few cycles I’ve been seeing an acupuncturist weekly, we’ve been working on regulating temps - by comparing my last few cycles it looks like I’ve ovulated

Just wondering if it looks like CD 19 looks like by ovulation date?

Also want to make sure, BD before CD 19 and after? Or once CD 19 happens pregnancy can not happen? Making sure I understand this 😭