Frequently Asked Questions
Read up on the questions we get asked the most.
What thermometer can I use?
How long will it take the app to get to know my cycle?
What can affect my temperature?
How many red days do I get?
I’m on the pill or other birth control, when can I start?
Who is Natural Cycles ideal for?
What about irregular cycles?
What countries do you ship to and when can I expect my thermometer?
Is it effective?
So, how does Natural Cycles calculate my red or green days?
How does Natural Cycles compare to Natural Family Planning?
How do I get started?
How come Natural Cycles is the only certified method of birth control?