To get started with Natural Cycles you will need a basal thermometer. It’s more sensitive than a regular fever thermometer as it shows two decimals.
Here are the most useful tips on how and when to measure your temperature with it:
Why Basal Thermometer?
A basal thermometer is a digital thermometer showing two decimals, (for example 36.99). It is much more sensitive than a regular thermometer, as it measures the slightest changes in your temperature. Something that is very important when measuring your basal body temperature, which rises in very small amounts near ovulation.
When to measure?
Measure first thing in the morning, even before you get out of bed! Why? The basal body temperature is our resting temperature and is lowest when we sleep. The slightest movement (getting out of bed) will increase your body temperature, thus making your reading further away from your actual basal temperature and therefore slightly less accurate. In fact, we advise NaturalCycle users to try and measure at roughly the same time every day, within a ±2 hr window of your usual morning alarm. If you decide to have a lie-in after a busy week at work then we suggest you leave it for the day.
How to measure?
I’ve measured twice and thermometer shows two different temperatures?
Our basal thermometer’s are super sensitive in order to capture the minute changes in your temperature. With every reading your body’s temperature will naturally rise, and so the first reading is likely to come out lower than the next. There is no need to measure twice as the first reading will be the closest to your actual resting temperature.
What is LO?
‘Lo’ means low temperature, and not low battery – so no worries! The reason it says ‘Lo’ from time-to-time is because room temperature is roughly 21 degrees, which is ‘Lo’ for our basal thermometer. Body temperature should be around 36.5–37.5 degrees (a little science for you). Any higher than this, then you probably have a fever and therefore advise you to leave the reading for the day.
A big pointer for all you newbies! It will take a 1-3 cycles of measuring for Natural Cycles to get to know your unique cycle.
Your Natural Cycles team