• On average, ovulation occurs 14 days before your period begins. If your cycle is 28 days long then you ovulate on day 14. Your most fertile days would be 12, 13 and 14. • You will notice cleaner, slipper, and wetter cervical mucus. • Slight rise in temperature after ovulation. You may detect it with thermometer. • You can use ovulation predictor kits. The hormone sin your body increase and the kit detects them telling you about ovulation.