A 26 year old woman with 32-day menstrual cycle planning for conception regularly checks her body temperature (orally) using a digital thermometer in the morning before getting out of bed. She noticed an increase in her body temperature on the 18th day of menstrual cycle. This is caused by
The cause of the temperature change at the time of ovulation is probably the increase in progesterone secretion since progesterone is thermogenic.
Oestradiol
Progesterone
LH peak
FSH peak
Endocrinology