A Chinese article titled "Dangerous Period of Ovulation":

Generally speaking, women are more at risk within a few days of ovulation. According to statistics, women are most likely to become pregnant within a few days of ovulation. Therefore, if a woman wants to get pregnant, it is best to avoid bad behaviors during this period.

Except for the dangerous period within a few days of ovulation, other times are also safe. It is safe at other times during a woman's menstrual cycle except during ovulation and a few days after the end of the cycle. However, this does not mean that women cannot become pregnant at other times. Therefore, women should always take safety measures to avoid pregnancy.

To sum up, the few days leading up to ovulation are a dangerous time for women and they need to avoid bad behaviors. At the same time, women should always take safety measures to ensure the safety and health of themselves and their children.