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Best BBT Thermometer

Picking the best BBT thermometer could make all the difference when you’re trying to get pregnant. BBT monitoring provides a more accurate read on your ovulation that ovulation predictor kits - which are susceptible to distortion due to health conditions and medications that affect your hormones levels, or even taking the test at a different time of day! The disadvantage is that it’s a more manual and onerous way of tracking your fertility, and there more opportunities for human error to disrupt your results and make you miss your opportunity to conceive!

How do your Track your BBT?

To track your basal body temperature you need to keep a thermometer by your bed because you need to measure your temperature first thing in the morning. Your basal body temperature is the low level your body temperature drops to overnight, and taking readings at this level (or as close to it as possible, by recording your temperature as soon as you wake up and before your metabolism starts to speed up again) can show you when you’re ovulating. The minimum level for your body temperature is affected by ovulation, so if you take regular readings you can see how it changes and identify the pattern that indicates when your body is getting ready to ovulate.

It can help to put your temperature readings on a graph: when you’re looking for a pattern in the results, turning raw figures into a visual representation can make your job easier! The pattern you’re looking for is a rise of .4 of a degree sustained for 48 hours: this is the primary indicator of ovulation. Some women also see a drop of .4 degrees for the three days before they ovulate - though not everyone will see this, so don’t rely on it.

What You Need in a Thermometer

The best BBT thermometer will help you achieve your aims. The minimum you require is a clear display: if you can easily misread the results, you’ve introduced more opportunities for errors in your data. A digital thermometer provides a result you cannot misinterpret, so opt for one of these.

You also need your thermometer to be accurate down to tenths of a degree: if it doesn’t have this level of accuracy you won’t get the information you need. Don’t pay for a more sensitive thermometer than required - you don’t need to know your temperature to within a hundredth of a degree and this could confuse you!

It can also help to look for extras: attached software to track the temperature and graph it for you can help you find a pattern more easily and reduces some of the opportunities for human error!

Find out more about core temperature technology and fertility here