The ovulation period refers to the 14th day of the female menstrual cycle. On this day, the female egg will mature and be released. It is an important period in the female reproductive cycle. During the ovulation period, a woman's physical condition will undergo a series of changes, which are crucial to women's fertility and reproductive health.

1. Increase in body temperature: During the ovulation period, a woman's body temperature will rise by about 0.5 degrees Celsius. This is the body's preparation for releasing the egg.

2. Increased sexual desire: During the ovulation period, women’s sexual desire will increase because the body is preparing to release eggs and hopes to attract more sperm into the body.

3. Blood color changes: During the ovulation period, the number of red blood cells in a woman's blood will increase and the blood color will become darker. This is because the body is responding to obtain enough oxygen.

4. Increased vaginal secretions: During the ovulation period, women’s vaginal secretions increase and they may feel moist and uncomfortable. This is because the body is preparing to receive sperm.

5. Appetite changes: During the ovulation period, women's appetite may change and they may feel hungry because the body is responding to obtain sufficient nutrients.

These changes are critical to both women's fertility and reproductive health. If women can stay healthy during their ovulation period, they will be better able to meet the challenges of fertility. Therefore, women should pay attention to their physical health and adopt a healthy lifestyle during the ovulation period, including eating a healthy diet, exercising moderately, and maintaining a good mentality.

Women should pay close attention to their body temperature and physical condition, and adopt a healthy lifestyle during the ovulation period to ensure that they can better meet the challenges of fertility.