ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

How to Measure Basal Body Temperature

Updated on March 21, 2010

A few more tips

- If necessary, use an alarm clock. Waking up and measuring your BBT at exactly the same hour each morning is essential. On weekend mornings you can simply measure your temperature and then go back to sleep.

- Each act that you get involved in after waking up will lead to temperature changes. Refrain from chatting and kissing your husband – measure your temperature first.

- If you wake up during the night, three hours or less before the time when you usually wake up, it might be a good idea to measure your BBT.

Basal temperature is the temperature of a specific body part right after waking up. It can be used as a reliable method for determining ovulation and is especially popular among women trying to conceive.

Measuring basal body temperature (BBT) is quite simple, as long as you know the rules that should be followed.

Start measuring BBT during the first day of your monthly menstrual cycle. The equipment needed for the procedure is basic – any thermometer would do. Basal body temperature can be measures orally, rectally or vaginally.

How does BBT work?
Two hormones in the female body regulate the menstrual cycle. Estrogen is predominant during the first half of the cycle (the follicular phase). Estrogen helps for the production of an ovum that will be discharged during the process of ovulation.

During the second stage of the menstrual cycle, the luteal phase, progesterone becomes controlling. BBT is based on the availability and predominance of these two hormones. Estrogen is known as a ‘cold’ hormone, while progesterone is the exact opposite. Before ovulation the BBT is lower. After ovulation takes place, the temperature increases slightly. Taking into consideration these facts, you can determine your ovulation based on BBT.

Getting started
Buy a reliable thermometer. A digital one will probably be the best option, which still remains quite inexpensive.

Make sure that the thermometer you have measures temperature correctly to the tenth of a digit. This is needed since the change in BBT is usually quite small, yet significant.

You will also need a chart showing temperature during each day of your cycle. Such charts can be discovered online. The best part about these is that you can also keep track of other occurrences during your cycle that can help you determining your ovulation with precision.

Measuring BBT
BBT must be measured directly after you wake up. This means opening your eyes and getting a hold of the thermometer. You need to measure BBT before washing your teeth, drinking coffee and getting ready for work.

To get precise readings, you need to measure basal body temperature at the same hour each day.

Get started during the first day of your cycle, that is the first day during which you get a menstrual bleeding. Measure your temperature in the morning and record the number in your BBT chart.

The typical pre-ovulation BBT will vary between 36.1 and 36.8 degrees Celsius, though these figures can be strictly individual. The important thing is to notice a change during one day of your menstrual cycle. This high temperature should remain unchanged for at least three days – your ovulation period. A rule of thumb is that temperature after ovulation will remain above 36.5 degrees Celsius.


    0 of 8192 characters used
    Post Comment
    • profile image


      6 years ago

      What happens if you take your temp at a different time of the day? Should you add or subtract anything?

    • profile image


      9 years ago

      tnank you

    • vily_far profile imageAUTHOR


      11 years ago

      Thank you for the positive feedback, Dame Scribe :)

    • Dame Scribe profile image

      Gin G 

      11 years ago from Canada

      Excellent information for women and men. :) thank you.


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
    ClickscoThis is a data management platform studying reader behavior (Privacy Policy)