Patient's question:
Your basal body temperature is usually 36.2 or 36.3 degrees. On the 15th in the morning, it was 36.1 (I noticed pinkish-brown discharge in my underwear, similar to menstruation, but it only lasted for one day). On the 16th in the morning, it was 36.4. On the 17th, it was 36.05 again. On the 18th, the temperature was 36.6 degrees. On the 19th, I measured it after eating breakfast, and the temperature was 36.4. On the 20th, I measured it after getting up and washing my face, and it was 36.6. This morning, I measured it right away without moving, and it was 36.2. Last night, I noticed some very light bleeding again, which should be ovulation bleeding. So, is this ovulation? If it is ovulation,Doctor's answer:
If ovulation is normal, the low-temperature phase and high-temperature phase are very distinct. In a normal cycle without pregnancy, the first phase is the low-temperature phase. After ovulation, the body is influenced by progesterone (luteinizing hormone) secreted by the corpus luteum, causing a temperature rise. After the normal 14-day luteal phase, the corpus luteum atrophies and stops secreting progesterone (luteinizing hormone). When progesterone levels drop below a certain threshold, they no longer affect the body's thermoregulatory center, and the body temperature returns to the low-temperature phase. At the same time, menstruation occurs.