How To Get An Accurate BBT Temp

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    lauramarick

    As a breast feeding mom I don't get a reliable 4 hours of good sleep in a single stretch each night. Will this affect my readings?

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    jessie.ruiz87

    I am also breastfeeding still and four hours of straight sleep is a distant memory.

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    Courtney

    Hi lauramarick and jessie.ruiz, 

    If you don't get at least three hours of sleep before taking your temperature, your temps probably won't be useful for determining ovulation. However, if you're trying to avoid pregnancy, you can use the Lactational Amenorrhea Method (LAM) of birth control to avoid pregnancy while breastfeeding. Check out this article for more info!

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    manini_h

    What do I do if I wake up in the middle of the night but stay in bed, go back to sleep and then wake up again in less than 3 hours? When do I take my temp? Or how does this affect my temp if I take it after waking up the 2nd time and before getting out of bed? Thank you

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    Courtney

    Hey manini, whether you take your temp when you wake up in the middle of the night or when you wake up for the day (or both), you'll probably want to mark it as questionable. If this happens EVERY night, then take your temperature both when you wake up in the middle of the night, then again when you wake up for the day. Record the first temp in the Journal section, along with the time you took your temp. Record the second temp in the Temperature section, but mark it as questionable. Then, see if you can notice a pattern, either between your temps from waking up in the middle of the night, or your temps from waking up for the day.

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    deannakjones

    Hi! I am a rather light sleeper and tend to often wake up an hour or so before my alarm, if I am set to temp at 6:15, but happen to wake up at 5, when shoud I temp for that day? I understand it would make sense to temp at 5, but if I do that I know I'll be waking up at 4...it's just how my body works...any thoughts? My charts been a little crazy the past few days (luteal phase) and I'm wondering if that's what is causing it...thank you!

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    Courtney

    Hey Deanna, to get an accurate temperature, you need to take your temp as soon as you wake up, and after at least 3 consecutive hours of uninterrupted sleep. It's best to take your temperature as close as possible to the same time each day, but if you take it within about an hour of the time you normally wake up, it should still be accurate. So if you wake up an hour or two before you get up for the day at 6:15, taking your temp at 6:15 won't be accurate. So, try to take your temperature as soon as you wake up, whenever that is - and make a note of the time you took your temp in the app. If it's much earlier or later than normal, you'll want to mark that temp as questionable. 

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    emmaseymore

    I have a beeping thermometer... I just turn it on and off under my pillow to muffle the beep and when it's reading my temp I muffle it with hands :)

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    esther.d.gyory

    For the purpose of gauging a temp shift/cover line should I always round down (or up) to the tenth of a degree, or just follow our elementary school rounding rules (5 up)?

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    Courtney

    Hey Esther, 

    First of all, if you want to track your temperature to two decimals, you can - tap More->Settings, then tap the .00 next to Temp Decimals.

    For charting to one decimal - If you want to be ABSOLUTELY certain you don't mark the temperature shift incorrectly, always round down. This may be a good idea if you're trying to avoid pregnancy and absolutely do not want to risk a pregnancy. But if you're trying to get pregnant, you can use the .5 up rule. 

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    jnl5320

    I have a basal thermometer that is accurate to the 00.00. Do I round up and down? For example: if my temp is 97.27F should I say 97.3F?

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    jnl5320

    I just read the above comment. Sorry. Thanks for your precious answer. I will Chang my settings

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    shye.johnson

    If the time you go to sleep each night varies widely, will taking your temperature at the same time each morning be inaccurate? I go to bed anywhere from 10pm to 2am and wake up at 7am to take my temperature. Should I focus more on taking my temp after the same amount of sleep each night?

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    Courtney

    Hey Shye, as long as you get at least 3 hours of uninterrupted sleep before you take your temperature, and take your temp as soon as you wake (before getting out of bed or doing anything), your temperatures should be accurate, even if you don't always go to bed at the same time. However, every woman is different, and you may want to monitor the time you took your temperature each day and see if there's a difference in your temps between days that you went to bed earlier, and days that you went to bed later. 

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    Megan Nankivel

    I woke up before my alarm, 4:45a and went to the bathroom. Before I got out of bed my temp was 97.6. I was able to fall back asleep until my regular temp alarm at 6:09a which gave me a temp of 98.2, which do I mark on my chart? I'm in my temp shift and both are above my cover line.

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    Lauren

    Hi Megan, I would personally choose to record the earliest one (97.6) and mark it as questionable, but since both temperatures are above your coverline, it actually doesn't matter quite so much which one you choose to include on your chart.  You won't be using those temperatures for any important calculations, so you have some leeway.

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    Megan Nankivel

    I was thinking that first one was more accurate, thanks Lauren!

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    corinne.lojo

    Does snoozing affect bbt? I sometimes hit the snooze button one to two times before actually waking up and taking my tempurature, and have gotten some inconsistent results. I also sleep in a colder room and am just using a regular thermometer (wink is preordered!) so I don't know which factor is causing my irregular temps. Thanks!

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    Lauren

    Hi Corinne, snoozing can sometimes affect your BBT - it may go up by a few tenths of a degree, particularly if you move around while you're snoozing.  I'd recommend trying to get in the habit of taking your temp right away and see if that takes care of the inconsistencies in your temperature that you're seeing.

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    lindsey.a.w.b

    I just started charting three weeks ago. I purchased a Veridian basal thermometer and feel like I'm wasting time and energy. My temperatures are lower during the evening (pre-dinner and pre-bedtime) than they are in the morning first thing upon waking. Also, my thermometer beeps after about 15 seconds, so I take the reading, but just discovered that if I leave it in for another minute, I get a completely different reading! Also, I get repeat temps almost everyday (97.18, 97.58, 97.80, 97.60)... it's like it's stuck on these particular #s and doesn't really take my temperature. It is getting very frustrating. Finding a basal thermometer with halfway decent reviews (and doesn't cost over $20) seems to be impossible. Does anyone have any recommendations to get me through until Wink is released? 

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    Lauren

    Hi Lindsey, I'm so sorry about the trouble with your thermometer!  I hope I can give you some helpful tips :)  It looks like the Veridian basal body thermometer is actually designed to give you an accurate BBT reading after a full minute of measuring.  This means that you'll need to leave the thermometer under your tongue for a full sixty seconds to get an accurate reading (you may find that your thermometer beeps again if you leave it under your tongue, and when it's ready it will beep several times in quick succession).  I'd recommend giving this a try just to see if your current thermometer is fine before buying a new one :)  Let me know if you have any questions about this!

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    kailimay2012

    Do I round up or down? Oftentimes my temp is 97.29 or something like that. Should I record it as 97.2 or 97.3?

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    Lauren

    Hi Kailimay, thanks for your question! When rounding, you should always round to the nearest tenth of a degree.

    So if your temp was 97.49, that's closest to 97.5. If your temp was 97.41, you'd round down to 97.4. If the hundredth digit falls exactly in the middle, say, on 97.45, you should round DOWN to 97.4. You only have to worry about this when the hundredth digit is a 5 (since this is exactly in the middle). Otherwise, always round up or down to the nearest tenth.

    I hope that makes sense. Let me know if you have any questions about this!

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    styling2001uk

    Thank you to replying to my previous reques however I have another. My temps always decrease the longer in sleep in. Everywhere else ladies bbt seems to increase but mine do the opposite??

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    Lauren

    Hi Styling, thanks for contacting us!  Hm, that's a bit unusual - you're right that most women's temperatures slowly creep up the longer they sleep in.  However, every woman is a little different so it's possible this is simply your body's natural temperature pattern.  Alternatively, if you don't sleep for very long, it's possible you haven't been asleep long enough for your body to reach its lowest temperature yet and your BBT is still slowly decreasing.  Either way, as long as you take your temp around the same time every day you'll get an accurate BBT reading.  I hope that helps!

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    american79eagle

    Can you get an accurate calculation of your BBT using a temporal lobe thermometer?

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    sandra.marie85

    I just started taking my BBT, and I'm taking it vaginally since orally was giving me varied temps in the same sitting. I'm on CD4 and my temp has been 97.7℉ for 3 days in a row, is this normal? I was expecting my temperature to vary each day...

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    Sam

    Hi Sandra,Thank you for writing.  I would say that 3 days of the exact same temperature is a little strange, though not impossible.  Generally there will be slight variations. I would try for another few days and if the temperature never changes, I might find a different thermometer.  Also, a good thing to try: temp sometime in the middle of the day- if your temperature still comes up the same, you know the thermometer is broken.  Good luck!

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    Sam

    Hi Hooting,  Generally temporal lobe thermometers are not delicate enough to determine the small variations in basal body temperature, we recommend tempting orally or vaginally.

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    kerrimuir2000

    Hi I work shifts so taking my BBT at the same time will be impossible I also work nights, when is the best time. Just so soon as I wake up x

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