Track your menstrual cycle length
Count backward about 14 days from your next expected period
Watch for changes in cervical mucus becoming clear, slippery, and stretchy
Check for a slight rise in basal body temperature after ovulation
Use ovulation predictor kits to detect the LH surge
Notice mild one-sided lower abdominal pain or cramping
Observe increased libido around the fertile window
Monitor breast tenderness or bloating
Use fertility tracking apps or calendars
Confirm with a healthcare provider if cycles are irregular