Days 1 - 5. At the start of menstruation our levels of oestrogen and progesterone are at their lowest. This is known to cause a dip in energy. You may be feeling sluggish and tired or experiencing cramping/ bloating. This is a good time to reset and set new intentions for the cycle ahead. Depending on your menstrual symptoms you may have more energy from day 3 and we slowly increase the pace of workouts.