How to measure basal body temperature on ovulation day

It is meaningless to simply measure the temperature on the day of ovulation. It is recommended to monitor the basal temperature. The monitoring of basal temperature is to wake up in the morning without talking or moving. Put the thermometer under the armpit for 5 minutes, and then read the temperature on the thermometer and write it on paper until the next menstruation. According to the change of basal temperature, you can know whether there is ovulation. Ovulation occurs when basal body temperature is relatively low during the first half of menstruation and elevated during the second half of menstruation, around 37 ° C, for more than 12 days. Most of the days during menstruation when basal body temperature reaches its lowest point are basically ovulation days.