OPK or Temp Shift to measure DPO?

posted 1 year ago in TTC
Post # 2
2900 posts
Sugar bee
  • Wedding: August 2017

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@citizenerased14:  your charts look a lot like mine did.  I charted for years, paired with a year of fertility treatments and 7 cycles of letrozole before that.  I get a pre-o temp dip (when estrogen peaks your temp drops), then a slow rise because the E/P ratio initially is higher estrogen, then a steeper rise as the estrogen drops and progesterone surges.  Without ultrasound you’ll never know for sure, but I’d say sometime between CD16-17 you ovulated 

Post # 3
53 posts
Worker bee

For me, I can’t really trust my temps beyond “I clearly ovulated some days ago” and “period is about to start.”  I get clear elevated temps throughout the LP and then a clear drop the day of AF, maybe the day before.  But my shift from lower temps to higher temps isn’t as distinct.  I get some generally low temps, a lowest temp somewhere in there, and then a climb up over a couple of days.  OPKs suggest I ovulate somewhere in the climb, but not necessarily where FF/Flo want to put it based on temps alone.  So, I got off the OPKs to try to catch the day and use the temps to confirm (and throw a tampon in my bag when I see the dip that says AF is coming!)

Post # 4
2256 posts
Buzzing bee

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@citizenerased14:  Fertility Friend has it right.  Your post-ovulation “rise” is when your temp rises above your last six temps.  You can also ovulate 12-48 hours after a peak OPK – and since BBT is the only ACTUAL way to verify ovulation, this absolutely looks correct.  This would put you at 5DPO today.

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