Basal Temperature

A basal thermometer is an ultra sensitive thermometer that tracks your body’s minutest temperature shift or basal temperature. Basal Temperature is the normal body temperature of a healthy person immediately upon awakening in the morning. This temperature normally rises after ovulation due to hormonal changes. Thus, a temperature increase near the middle of your menstrual cycle can indicate ovulation has occurred.

Basal Thermometer

A basal thermometer is often used by women to chart their basal body temperature chart and hence predict their fertile period or ovulation. There are various kinds of basal body thermometers available but a digital basal thermometer is your best bet. Each basal thermometer kit comes with a blank basal body temperature graph that you can use.

This method relies on precise recording of your body’s resting temperature. For this method to be accurate, temps must be taken first thing in the morning, and at the same time each morning. During the first two weeks of your cycle, your body temperature is lower (96.0 to 97.5 F). With ovulation, a rise in body temperature takes place – caused by an increase of the hormone progesterone – in order to provide a warmer, more fertile environment. A minimum temperature rise of 0.4 to 0.6 degrees F can be measured by a basal thermometer. By monitoring when this temperature change takes place, you can determine when ovulation takes place in your cycle.

Basal Thermometer vs. Regular Thermometer