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For many women, menstruation day 1 and trying to determine the day of ovulation can be very confusing. In fact, the ovulation period refers to the time when a woman's egg is released from the ovary to the fallopian tube. This period is usually 24-36 hours, and the egg can only survive for 1-2 days. Therefore, if you want to get pregnant, it is very important to know your ovulation period.

Generally speaking, a woman’s menstrual cycle is about 28 days, so counting from the 1st, the 14th day is the ovulation period. However, this is only a rough guide as everyone's cycle is different. If your cycle is shorter, you may need to wait until day 15 or 16 to determine ovulation.

Additionally, if you want to improve your fertility through diet or exercise, it's important to know how to increase hormone levels in your body. During ovulation, women should eat more foods rich in vitamins C and E, such as citrus fruits, nuts and green leafy vegetables, which can help promote ovarian health.