The NC° Algorithm

• Which fertility indicators does Natural Cycles use?
• Does Natural Cycles take sperm survival into account?
• How long will it take for the algorithm to get to know my cycle?
• How Natural Cycles detects ovulation
• How Natural Cycles detects anovulatory cycles
• What is the ovulation window?
• What are predictions?
• How Natural Cycles predicts your next period
• What is the cover line?
• Why do I get so many Red Days?
• Can my fertility status change in the past?
• How do ovulation test results influence ovulation detection?
• Why don’t I have ovulation test recommendations anymore?
• Why was I switched to another cycle when I did not log a period?