The definition of the female risk period The female risk period refers to the period in a woman\’s menstrual cycle when she is most likely to become pregnant, usually from 5 days before ovulation to 2 days after ovulation. During this period, hormonal changes in the woman\’s body thin the cervical mucus, making it easier for sperm to travel and bind to the egg. Therefore, accurate calculation of women\’s risk periods is very important for both contraception and family planning. How to Calculate Women\’s Danger