Fertility/Ovulation Thermometers are most commonly utilized for increasing conception chances or naturally avoiding pregnancy by checking fertility cycle. They are highly effective in assisting the user in predicting ovulation & charting fertility. These thermometers are completely reliable in nature and deliver correct readings. In the case of egg release, the body produces progesterone which results in an increase in body temperature that can be measured & tracked easily. It is recommended that Fertility/Ovulation Thermometers should be used each morning at the same time before getting out of bed & doing any physical activity to get accurate readings.