Ovulation Predictor Kits (OPKs)

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    kmbwalsh

    I keep getting negative opk results (I'm just using bulk pack Internet ones)

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    Lauren

    Hi KMBWalsh, I totally understand how frustrating it can be when your body doesn't behave as expected. It's possible you may be taking the test too early, but sometimes OPKs can also be inaccurate, so it's possible the OPKs you're using are giving you false negatives. Your temperature is generally the most accurate indicator that ovulation has occurred, so make sure you're tracking your BBT every morning to identify ovulation. You can read more about doing this here:

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

    I hope this helps!

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    aouthred

    Hi I use clear blue digital opks which give you your " fertile" days and "peak" fertile days...which should I be recording as positive? Only the peak?

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    Sam

    Hi Aouthred, Most women I have seen mark both the fertile day and the peak fertile day as positive results.  This is because sperm can live up to 5 days, so even if when you test, you're on a "fertile" but not a "peak" day, sex during that time could still lead to conception, depending on how early the OPK shows a positive result.  Remember, this is a predictor for ovulation, but temperature is always the best way to confirm that it has occurred.  Good luck!

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    mabellefsu

    Hi, I have never really had a positive OPK until this month. Now the past 3 days have indicated a positive. I would say the second day was probably the darkest line. Could a test show 3 days of positives, if taken at the same time each day?

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    Lauren

    Hi Mabelle, thanks so much for contacting us!  Yes, it's totally possible to have three consecutive days of positive OPK tests.  This is because the tests are measuring estrogen levels in your urine, and sometimes your estrogen levels can spike high enough to give a positive OPK even though they haven't quite spiked high enough yet for you to ovulate.  It's most likely that you ovulated on the THIRD (or last, if you get another positive test) positive OPK day rather than the second, even though the second day was the darkest line.  Let me know if you have any questions about this!

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    lgbarry

    If I haven't tracked my fertility for very long and am not sure if I ovulate early, mid-cycle, or late, what calendar day do you recommend I start using an OPK? For example, if my cycles are 30 days and I think I ovulate between days 14-20, should I start using an OPK once daily on day 12?

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    Lauren

    Hi lgbarry, thanks for your question.  Yes, starting about 2 days earlier than when you expect you might ovulate at the earliest will most likely be early enough  If you're also tracking cervical fluid, it may be best to start testing when you see creamy or eggwhite-quality cervical fluid, as your fertility will be peaking around that time.

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    emily.karben

    As an experiment, I used 2 different brands of OPK's at the same time. They were both similar in appearance and mechanism of action (dip in urine, wait until line(s) arise. One tested +, the other -. Frustrating. What brand/type would you recommend? I have never gotten a positive result with the 'easy@home' test strips from amazon. Do you have any experience with these?

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    jen.e.schultz

    I'm confused about which signs are most important for ovulation. I am taking OPKs twice a day since it's my first month using them. I got a positive Thursday night, Friday morning and Friday night - negative on Saturday morning. My cervical fluid seems to correspond (not much on Friday night/Saturday morning), and I've had some ovulation pains late Friday night. However, my temperature had started to ride around the same time I saw my first positive OPK. If I'm going solely based on BBT then I ovulated Wednesday or Thursday. Is it possible for my BBT to be less accurate than everything else? Or is it the truest signal and everything else is out of whack?

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    sunrisered159

    How long is too long to have positive OPK results before you say that maybe it's not correct? I'm on day 4 of positive strips. The box says it measures LH and doesn't say anything about estrogen.

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    shel_burgess

    Hi,

    I have been testing with opks throughout my cycle at least 3 times a day. I've followed all the instructions but usually they are just a faint line, there has been one that was stronger, but not as strong as the control. Could I have missed it even though I was regularly doing them or is there a chance I'm not ovulating? Is it likely at all that I still ovulate but that they don't pick it up or work with me?

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