The correct way for women to monitor ovulation through basal body temperature is to monitor the body temperature before waking up every day and determine the ovulation period based on the temperature change. Women can determine their ovulation period by monitoring their basal body temperature, but if they want to get more accurate results, they need to use scientific measurement methods. If a woman wants to monitor her basal body temperature, she should first choose a fixed period of time, and it is recommended that the temperature before waking up in the early morning of each day should be taken as the standard. Body temperature will change with ovulation, it will drop slightly during ovulation, and after ovulation, it will rise by about 0.5 degrees on average, and will not start to drop until the onset of menstruation. We generally recommend monitoring basal body temperature for three consecutive menstrual cycles to project a more accurate date of ovulation. If a high basal body temperature is found to persist for more than 20 days during the monitoring process, it is recommended to go to the hospital to complete the examination to see if you are pregnant.