Estimate your next period start date working backwards or forwards from a known ovulation day.
Next Period from Ovulation
Next Period from Ovulation. རིན་མེད་ཨོན་ལའིན།.
Estimated ovulation
Tue, Jul ༡༤, ༢༠༢༦
Fertile window is approximate (~༥ days before + day after).
Fertile fromThu, Jul ༩, ༢༠༢༦
Fertile untilWed, Jul ༡༥, ༢༠༢༦
རིམ་པ
- Open the calculator
- Enter your values
- Read the result instantly
འབྲེལ་བ
དྲི་བ
Are results official?
No — quick estimates only. Confirm with your bank or provider.
Is data saved?
No. Calculations run in your browser.
Where is the full tool?
Each satellite links back to the main hub calculator.