Your basal body temperature (BBT) is your temperature when you’re at complete rest, normally measured in the morning after having 6–8 hours of sleep (rest) before any physical activity, such as exercise, diet or mood changes. Using the best basal body temperature thermometer to predict ovulation is a simpler alternative. Right before ovulation, basal body temperature usually drops, with a sharp increase of 0.2℃-0.5℃ right after ovulation. With an adequate corpus luteum function, it will stay at this level until the next menstrual cycle. Keep monitoring your basic body temperature with Shecare smart thermometer every morning and the body temperature data is automatically uploaded to Shecare APP. It will help you accurately predict the ovulation date and the menstrual period, as well as analyze your reproductive system.