Basal Body Thermometer



Image: Graphics: Pee-On-A-Stick-Freak


There are so many benefits you can experience from charting your fertility! One of the main, key ingredients in order to gain insight into your most fertile window is the ability to track your daily BBT (Basal Body Temperature) throughout the duration of your cycle. Your BBT is your lowest body Temperature at rest, following a solid block of at least 3 hours of sleep or more.

Now, before you go reaching for a typical (Fever Thermometer) you may be surprised to know that fertility experts of the like have come up with this amazing invention known as a Basil Body Thermometer! That’s what you’ll typically want to use. It’s a special kind of Thermometer that is very inexpensive, you can find it at most drugstores and it measures at 1/100 of a degree. So for example, with a normal (Fever Thermometer) that only measures at 1/10 degree – your temp would read at 98.6° whereas a BBT will measure your temp detecting slight body fluctuations reading at 98.67°. It’s very ideal just for the fact that you may detect Ovulation with only a slight Temperature increase over the course of several cycles, which may give you better insight inside your future fertile window.

During your FP (Follicular Phase) Estrogen is responsible for lower BBT’s. Once Ovulation occurs, you’ll notice a rise in BBT’s due to Progesterone, which is a heat inducing Hormone responsible for gearing your body up for possible Conception. Many women commonly opt to use OPK’s (Ovulation Predictor Kits) to detect their LH Surge (Luteinizing Hormone) that’s highly concentrated just a day or two prior to Ovulation – but only a rise in temperatures for at least 3 days or more will confirm it!

It’s important when temping, to do so at the same time everyday and in the same manner. Some may opt to do it vaginal rather than orally. Whichever method you prefer consistency is key! Another important factor is making sure you get plenty of rest beforehand. Otherwise you may start to notice erratic temperatures on your chart that can make it difficult when trying to interpret it. It’s not uncommon though to occasionally experience a slightly higher or lower temp when charting. The most important thing is maintaining a pattern with several temps throughout each part of your cycle so you can know when to accurately pinpoint Ovulation, as well as knowing when to expect a reliable result on a HPT (Home Pregnancy Test). If you’re charting for other reasons, pinpointing Ovulation will also aid in knowing when to expect your next Period.

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