The ovulation period at the end of menstruation on the 18th refers to the period between the 14th and 28th days of a woman’s menstrual cycle. During this time, a woman's eggs are typically released from her ovaries into her fallopian tubes, where they await fertilization. Therefore, this period is also called the "ovulation period" for women.

So, how do you know your ovulation period?

First, calculate your menstrual cycle. Generally, a woman's menstrual cycle lasts 28 days, but some may have it shorter or longer. Calculate your menstrual cycle, then calculate the first day of your next period, and the 7 days before and 8 days after that day.

Second, observe your symptoms. During ovulation, women may feel some discomfort. For example, they may feel some dampness, their chest may feel swollen, or they may feel some pain in their waist and abdomen. These symptoms may appear within a day or may take several days to appear.