How do you use a digital thermometer to predict your fertile time ?
Your basal body temperature is your resting body temperature on waking 1st thing in the morning ie before you get up or move about
By measuring your basal temperature every morning you can pinpoint & later predict ovulation.
Measuring basal body temperature or BBT can be a way for women to pinpoint their fertile time. This is beacause the basal temperature increases by between 0.5 and 1 degree fahrenheit (a quarter to a half degree centigrade) at ovulation. The temperature then remains elevated until just before menstruation commences.
Interestingly if a pregnancy occurs the BBT remains elevated for approx the first 3 months, so this can be an early sign of pregnancy.
The temperature should be taken immediately upon waking and recorded on a chart (a BBT chart is ideal)
If this is done over several months a characteristic pattern emerges that allows a woman to predict as well as pinpoint ovulation.