What is a temperature shift?

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    annie_smith79

    Is there a chance that my temperature will not increase but I have ovulated?

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    cmdelarosa

    I'm wondering the same. Had watery cm up until a couple days ago, but no temp rise.

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    Courtney

    Hi annie_smith79 and cmdelarosa, the absence of a temperature shift likely means that you did not ovulate that cycle. It is possible that you are one of the very small percentage of women whose bodies do not respond to the effects of progesterone, and as such don't show a temperature shift even if you have ovulated - however this is very rare. In this case, the only ways to determine if you ovulated is through ultrasound or blood tests. 

    In your case, cmdelarosa, it's possible that your body is gearing up to ovulate, but hasn't yet this cycle. Keep tracking your temperatures and cervical fluid and see if you notice a change. 

    If you're experiencing an anovulatory cycle, know that many women experience anovulatory cycles at some point in their lives. Common temporary causes of anovulation include illness, stress, travel, significant weight gain or loss, or excess exercise (i.e. more than 7 hours per week) among other things. Check out this article for more information on anovulatory cycles: https://kindara.zendesk.com/entries/22242520-Anovulatory-Cycles-and-Breakthrough-Bleeding

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    Dana Walko

    Does your temperature go down when you ovulate and rise when your not ovulating?

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    Lauren

    Hi Dana, thanks for contacting us.  Your temperatures are generally lower during the phase of your cycle BEFORE ovulation, and then they rise up AFTER ovulation is over.  Your temperatures will remain elevated after ovulation until the start of your next period.  You can read more about this here :)

    https://kindara.zendesk.com/entries/23626932-BBT-101

    Hope that helps!

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    davina1_84

    How much does my temp have to go up to be classed as a temp shift? The temp I have just recorded was 36.55 which is higher than my last 6 temps. (All around 36.10-36.40) Is this considered a temp shift?

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    Lauren

    Hi Davina, to qualify as a temperature shift, your temperature needs to be at least .1 degrees (C) higher than the highest of your previous 6 temperatures.  So it does sound like your temperature today qualifies as a temperature shift :)

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    davina1_84

    It stayed elevated for 2 days and now today has dropped back down to 36.09??? . I had elevated temps on cycle day 15&16 (36.55 and 36.59) which I marked as a temp shift as my previous temps were all below 36.4. then today CD17 it's drop down to 36.09, the lowest it's been all cycle? Did I ovulate when my temp shifted up or not? Or do I just mark this low temp as questionable? Doesn't make sense?

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    Lauren

    Hi Davina, I totally understand your confusion!  Unfortunately it's a little hard to say whether you ovulated or not based on the information you've provided.  It's possible that you did not ovulate yet and your two high temperatures were simply flukes that were artificially high for some reason (restless sleep, etc), or it's possible that you DID ovulate and your super low temperature was caused by outside factors (did you take it much earlier than normal by any chance?)  You can confirm ovulation when you've had at least three consecutive elevated temperatures, so I'm afraid it'll take a few more days of temperatures to confirm whether you've ovulated already or not.  I hope this was helpful!

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    mrs.garberick

    I don't have a normal sleep wake cycle, when should I be checking my temp? when I first wake or at the same time everyday?

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    Lauren

    Hi Mrs. Garberick, thanks for contacting us!  To get the most accurate BBT, it's best to take your temperature as close as possible to the same time every day.  However, if you can't do this for whatever reason, try to take your  temperature as close as possible to the same number of hours of sleep each night (so for example, if you always sleep for 8 hours, take your temperature after 8 hours of sleep consistently).  Also, don't be frustrated if your temperature pattern is confusing at first - sometimes it takes a little while to get the hang of a pattern that works for your own sleep pattern and schedule.  I hope that helps!

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    rbouiewilliams

    My temperature increased to 98.1 this AM, and I got a positive OPK this morning. Am I fertile now or did I miss the window?

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    aziaforrest

    I also had a temperature increase yesterday to 98.1 degrees on the same day of my first and only +opk this cycle. It rose much higher than my previous temps. Does that mean my ovulation occurred or was delayed? Today it was still high.

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    Lauren

    Hi rbouiewilliams and A.Li, thanks for contacting us!  A sustained temperature shift is generally the most conclusive sign that ovulation has occurred and the egg is already gone.  According to studies, OPK results can be up to 48 hours early or late, making them a less reliable indicator of fertility than cervical fluid is.  If you'd like to maximize your chances of pregnancy, we recommend learning to read your cervical fluid, as this is the most direct indicator of how fertile you are on any given day.  This article is a good place to start:

    http://blog.kindara.com/blog/cervical-fluid-and-fertility

    I hope this helps!

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    hannah.doucette

    In your luteal phase when your expecting your period when it takes a dive down does that always mean your about to start your period?? Me and my husband have been TTC and I was getting excited that this might be our month! But my temp dropped a lot this morning and I remembered seeing something about when it drops you know your about to start. Is that true?

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    kristenjuly23

    Hello! I have a question about temperature shift, post ovulation: my temps looked something like this 97.8, 97.1(positive OPK), 96.9, and then jumped up to 97.7. If the temp of 97.7 is lower than one prior to ovulation-97.8 is that still a temp shift?

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