How long does the increase in body temperature last during ovulation?

In the female menstrual cycle, a rise in body temperature during ovulation is a normal phenomenon that reflects changes in hormone levels. The elevated temperature during ovulation typically lasts for 12 to 14 days. This occurs because progesterone levels increase significantly after ovulation, stimulating the body's temperature regulation center and causing basal body temperature to rise by approximately 0.3°C to 0.5°C. This temperature change usually appears when a woman first wakes up in the morning before engaging in any activity, and remains elevated for several consecutive days. After ovulation ends, body temperature gradually returns to its normal level, signaling the approaching menstruation. By monitoring these temperature changes, women can gain a general understanding of their ovulation patterns.