Enter your cycle details once and Luna will track your fertility phases, safe days, ovulation window, and help you plan — privately and beautifully.
Calendar
Tap a date to log your period
Period
Fertile
Ovulation
Safe days
PMS
Log for today:
Cycle Wheel
Where you are today
Coming Up
Next key events
Cycle Stats
Based on your data
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Day of current cycle
Intimacy Guide
Conception planning
Fertility Details
This cycle's key dates
Medical Notice: Luna uses the Fertility Awareness Method (FAM) based on average cycle data. Results are estimates only — not medical guarantees. Cycle lengths vary naturally. For contraception, consult a healthcare professional. For conception difficulties after 12 months of trying, see a fertility specialist.