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Help! Did I ovulate?

Taryn ⛵️ • Mon, Jul 23

Hi,

I know this isn’t a full month of BBT tracking, but based off on this I am trying to estimate my ovulation day. My interpretation is CD13, if my BBT is also elevated tomorrow? Is the day of ovulation the day of the temperature drop? Does BBT drop the day of ovulation or before?

Also, up to CD13 my OPK lines were getting darker, but after CD13 they have been getting lighter. I never had a positive OPK, so maybe I missed my surge? Help please!