What is the most reliable way (oral or rectal) to take my temperature to track my ovulation?

Good morning, Madam,

Unfortunately, identifying the time of ovulation using the thermometer method is complex. First, you usually need an ultra-accurate thermometer, accurate enough to identify a difference of 0.1°C (as the increase in body temperature following ovulation is usually 0.4-0.5°C). Secondly, you should take the oral temperature in the morning, before you get out of bed, drink/eat or urinate, every morning. In this way, you will be able to identify the period of "peak" temperature and then calculate the estimated fertile period according to the length of your cycle.

It is not a temperature of more than 37°C that you should be looking for, but rather an increase in your temperature during certain days of your cycle.

Have a nice day,

Alexandre Chagnon, pharmacist