Okay, here is an article titled "When is the ovulation date when menstruation ends on the 5th?":

For women with a 28-day cycle, ovulation usually occurs on the 13th day before the next period. However, if women have shorter cycles, they may ovulate earlier or later. In addition, a woman's menstrual cycle may be affected by many factors, such as diet, exercise, stress and emotions.

In order to more accurately predict a woman's ovulation period, women can learn about their cycle and ovulation period through the following methods:

1. Record your menstrual time: Women should record their menstrual time to understand their cycle and ovulation period.

2. Measure basal body temperature: Women can understand their cycle and ovulation period by measuring basal body temperature. Basal body temperature refers to the body temperature measured when a woman wakes up in the morning.

3. Use egg testing tools: Women can use egg testing tools to know their ovulation period. These tools measure the number and quality of eggs in a woman's body to determine when she is ovulating.

4. Observe menstrual cycles: Women can learn about their cycles and ovulation periods by observing their menstrual cycles.

Women should understand their cycles and ovulation periods to better manage their health. If a woman is unsure about her cycle and ovulation, seek advice from her doctor or nutritionist.