Ovulation refers to the time when a woman's egg is released from her ovary, usually around day 14 of her menstrual cycle. However, the specific calculation method may vary due to individual differences. Therefore, if you want to determine your ovulation period, it is best to consult a doctor or professional health consultant.

In summary, determining ovulation is useful for everyone. If you're trying to get pregnant, it's important to know when you're ovulating. If you're not sure when you're ovulating, talk to your doctor or professional healthcare advisor who can give you the best advice on how to determine when you're ovulating.