Didn’t magically get pregnant when you got off birth control? If so, you may be one of the millions of women who’ve used an Ovulation Predictor Kit (OPK) to get a better sense of your fertile window. Fitbit’s in-app female health experience now lets you log the results of your OPK. Better yet? Each time you log your positive OPK result, your upcoming fertile window estimation adjusts and becomes more personalized to you.
More precise fertile windows can help with the following: Not only can they take some of the mystery and anxiety out of the entire process, but they also mean less time guessing which days of your cycle you are estimated to be fertile. This means more time getting down to the business of making a baby—and, well, if you are using OPKs, the occasional peeing on a stick (but you already knew that).
First, though, what exactly is an OPK, and how does it work? You have questions, we have answers. Keep reading to find out more, ahead.
What is OPK, and how do you log it with Fitbit?
OPKs, or Ovulation Predictor Kits, are what most doctors recommend while you’re trying to conceive. And the best part? They’re effective. This 2016 study found that, while not perfect, timed intercourse using urinary hormone monitoring was associated with an increased pregnancy rate.
If you’re trying to conceive, Fitbit has a new tool to help you track the steps you take on your journey to motherhood. You likely already know that female health tracking is available in the Fitbit app. (And if you don’t, now’s your time to start using it!). But did you know that when you log a positive OPK, your upcoming fertile window adjusts and becomes more personalized to reflect the hormonal changes measured by the OPK?
So how exactly does it function? When you log a positive OPK test result, your upcoming fertile window and next predicted period adjust based on your new ovulation day (the day after you log the positive test result).
Going forward, your next cycle predictions will adjust each time you log a positive OPK, but the past cycles won’t change. If you delete a positive OPK test result in the current cycle, your predicted period and estimated fertile window adjust.
Finally, if you log a negative OPK test result, your predicted period and estimated fertile window in the Fitbit app remain the same.
Want to find out more? Go to our Help Page to learn more about understanding your personal female health trends in the Fitbit app. Then start logging your test results!
This information is for educational purposes only and is not intended as a substitute for medical diagnosis or treatment. You should not use this information to diagnose or treat a health problem or condition. Always check with your doctor before changing your diet, altering your sleep habits, taking supplements, or starting a new fitness routine.