If you have intercourse at this time, the chance of pregnancy is almost non-existent, and this time belongs to the safe period. If you have a regular menstrual cycle, you can predict the day of ovulation based on your menstrual cycle, which is 14 days before your next menstrual period. Because male sperm can survive in a woman’s body for 4-5 days and female eggs survive in her body for 1-2 days after ovulation, it is easy to get pregnant when you have intercourse within five days before and after the ovulation day, which is the danger period. Other than this time, intercourse is not easy to get pregnant, which is the safe period. The effect of contraception is sometimes not too good because ovulation is not only related to the menstrual cycle, but also influenced by other factors such as environment, life and emotions.