PERIOD CALCULATOR
To get the best results from this calculator, enter the first days of your last three months' periods in order. Only enter the last date if you know it; entering a single date assumes a 28-day cycle.
OCAK 2011
01020304050607
08091011121314
15161718192021
22232425262728
293031
OCAK 2011
01020304050607
08091011121314
15161718192021
22232425262728
293031
- Your next period
- The days when the risk of getting pregnant is highest
*Do not use this calculator for contraception. If your periods are shorter than 21 days or longer than 35 days, you may not be ovulating; please consult your doctor.