Basal body temperature

Basal body temperature is our most accurate sign of ovulation.

It takes less than a minute a day to take and record our temperature.

If we are charting on paper, or in an app we will see the difference between the pre ovulatory temperature variations, which should be very minimal, and a noticeable spike in our temperature. In our charting, once our temperature spikes, we draw, our our app creates, what’s called a Cover Line. This is a horizontal line that we draw across our months chart between the low temperatures and the high temperatures. Our high temperatures must then stay above this line for 3 consecutive days.

Normal temperatures should range between 97-97.5 degrees fahrenheit or 36.1-36.4 degrees Celsius. When it shifts the range is usually between 97.6-98.6 degrees fahrenheit or 36.4-37 degrees celsius.

If your temperature rises, and then in the following days goes back down to the cover line or below, you must wait for it to rise above the cover line, and stay above it for three consecutive days to ensure that ovulation has taken place and that you have allowed sufficient time for the egg, and possible second or third eggs (like in the case of twins) have been released and had time to disintegrate.

Your temperature can be effected by drinking alcohol the night before, being sick, travel, stress, and lack of sleep.

If your temperature has risen higher than normal or earlier than you expect, pay close attention and realize that something may be effecting your temperature and that it may not be an accurate indicator that cycle because of this.

From here we’ll learn the rule to work with when looking at basal body temperature, stay tuned…