Natural Cycles is best suited to women with regular cycles who can commit to a consistent morning routine.
Using Natural Cycles means measuring most mornings as soon as you wake up. Measure before you get out of bed at roughly the same time every day and after a similar amount of sleep (+/- 2 hours). Aim to measure at least 5 days per week. If the amount you sleep regularly changes, you might find Natural Cycles less suitable as a method of birth control.
Women using Natural Cycles also need to use condoms or should abstain from sex when there is a risk of pregnancy. Natural Cycles does not protect against STIs. Read about our community of Cyclers who chose to make Natural Cycles part of their daily routine.
If you are using hormonal birth control it may take longer before you can use Natural Cycles as a birth control option. You can expect more red days as your body is adjusting. It’s a good idea to speak to your doctor before changing methods.
If you’re currently using condoms, abstinence, or the pull out method, you can get started straight away. For more info, check out our frequently asked questions about Natural Cycles.
If you have a longer or shorter cycle than average, or if your cycle is irregular, then digital birth control may not be the most suitable option for you. If you have conditions such as polycystic ovary syndrome, or have an over/under active thyroid, may also find Natural Cycles to be less suitable. This is because the algorithm works by identifying variations in cycle length and predicting ovulation by analysing basal body temperature. However, you can still learn a lot about your unique cycle and benefit from other features such as PMS alerts. Discover more about how Natural Cycles works here.