Research Library
Check out our latest research and learn how you’ve helped us further the field of female health.
Latest Article
Published Research
An independent analysis of NC° Birth Control reviews
This study analyzed 3,265 reviews of Natural Cycles on the Google Play Store. All reviews were written in English and were published between 2014 and 2021...
Research at Natural Cycles
Published Research
Does the timing of COVID vaccination affect cycle length?
This analysis follows on from previous research we have carried out on the effect of the COVID-19 vaccine on US users and on the wider population.
Data Insights
Survey findings on hormonal birth control side effects
We wanted to learn more about the side effects those who switch from hormonal birth control experience and how they affect their lives.
Published Research
Does the moon affect the menstrual cycle?
In this study, the Natural Cycles Research Team worked with renowned researchers in the field, to investigate if the moon has any effect on when menstruation starts.
Hungry for more research?
Our peer-reviewed research is published in a top selection of scientific journals.