If your menstrual cycle is regular and you menstruate once every 50 days, you will ovulate 14 days before your next menstrual period, 4 days before and 3 days after the day of ovulation. If you have your period on January 1 and ovulate on February 6, the period from February 2 to February 9 is 8 days long, which is the ovulation period. If you are planning to get pregnant, you can arrange your sex life during the ovulation period, such as having sex three times in eight days and spacing out each time you have sex, which will increase your chances of getting pregnant. If you are not planning to get pregnant, it is recommended that you take contraceptive measures and use condoms during sex, which is safe, hygienic and convenient.