Knowing when ovulation is occurring can be determined by observing physical signs and using specific tools. Key indicators of ovulation include changes in cervical mucus (it becomes clear, slippery, and stretchy like egg white), a slight rise in basal body temperature after ovulation, mild abdominal pain or cramping, breast tenderness, and sometimes light spotting. Additionally, ovulation predictor kits that detect luteinizing hormone (LH) surges 12 to 48 hours before ovulation can help predict the fertile window. Regular monthly periods also suggest ovulation is occurring, as menstruation follows hormone changes after ovulation. To track ovulation effectively, one can chart the menstrual cycle to estimate ovulation timing (usually about 14 days before the next period in typical cycles), monitor cervical mucus texture and amount daily, use basal body temperature thermometers to record temperatures every morning before getting out of bed, and use ovulation predictor kits for hormone surge detection. Some people may also notice increased libido or mild ovulation pain (mittelschmerz) as signs. If ovulation signs or timing are unclear, consulting a healthcare provider for further evaluation and testing can be helpful.