Menstrual phase (days 1-5): The menstrual phase marks the beginning of the menstrual cycle, and it’s when you get your period. The Follicular Phase (days 6-14): During the follicular phase, the pituitary gland releases follicular stimulating hormone (FSH), which causes one ovarian follicle to mature. Every menstrual cycle is different, and everybody will experience different symptoms. FitrWoman is designed specifically for female athletes, and offers training and nutrition tips based on your menstrual cycle. Seeking professional guidance from coaches and trainers who understand the connection between athletic performance and phases of the menstrual cycle is also a good idea.