Understanding the Female Fertility Cycle The female fertility cycle refers to the period from the beginning of menstruation to the beginning of the next menstruation. Under normal circumstances, a woman\’s reproductive cycle lasts about 28 days, during which ovulation and menstruation will occur. Understanding the female reproductive cycle is important for preparation and conception. Generally every woman should know her cycle and decide with her partner the best time to conceive. A healthy lifestyle. Your physical condition before giving birth is closely related to your health during pregnancy. Without a healthy body, it is impossible to have healthy children. therefore