All set up to get the most out of Natural Cycles?

To get started with Natural Cycles you need a Natural Cycles account and a basal thermometer. 

A basal thermometer is a digital thermometer displaying two digits after the decimal, i.e. 98.31° F (36.65°C). This accuracy is required to optimally find the small temperature rise that occurs when you ovulate.  

Once we have gotten to know your cycle a bit we will recommend for you to take an LH test (ovulation test) a few days a month. This is optional but may help detect your ovulation quicker.

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Natural Cycles is a 93% effective, natural method of contraception that is delivered in the form of an app. It uses a smart algorithm that is sensitive to subtle patterns in a woman’s cycle to determine daily fertility, based on basal body temperature.

Natural Cycles does not protect against sexually transmitted infections (STIs). A condom should be used to protect against STIs.

Natural Cycles is the only app to be FDA cleared and CE marked for use as contraception.

Berglund Scherwitzl E, et al. Contraception. 2017;96(6):420–425.