How many days does ovulation last?

Under normal circumstances, a woman's menstrual cycle lasts about 28 days, and ovulation occurs between the 14th and 19th days of the menstrual cycle. This means that if no contraceptive measures are taken during this period, pregnancy is possible.

However, not all women have a 28-day menstrual cycle, and some may experience it early or late. In addition, there are some factors, such as diseases, drugs, malnutrition, etc., that may affect a woman's menstrual cycle and ovulation period.

Therefore, accurately calculating a woman's ovulation period is not an easy task. Many women use these methods for prediction, such as:

1. Observe the menstrual cycle: Many women will experience symptoms between the 10th and 19th day of the menstrual cycle, such as breast pain, headache, nausea, etc. If the cycle is 30 days, observations can be made between days 14 and 23.

2. Measure basal body temperature: Women can measure their body temperature when they wake up every morning and record it in a table. If your body temperature reaches its highest value between cycle days 14 and 19, you may be pregnant during this period.

3. Use a calendar: Many women use a calendar to predict ovulation. However, this method is not always accurate, as a woman's physical state and mood may affect the calendar.

To sum up, accurately calculating a woman’s ovulation period is not an easy task. If you're planning a family, it's a good idea to talk to your doctor or a professional fertility counselor to make sure your plans are accurate.