Research Library
Check out our latest research and learn how you’ve helped us further the field of female health.
Latest Article
Published Research
Do COVID vaccines affect your period?
In previous studies, the Natural Cycles research team was able to find a small but temporary increase in cycle length after vaccination that went away in the following cycles.
Research at Natural Cycles
Published Research
Insights on the responsibility of planning pregnancy with Natural Cycles
The aim of the two studies summarized here was to investigate the role that Natural Cycles played for Cyclers and partners who were using NC° Plan Pregnancy...
Published Research
How long does it take to get pregnant with Natural Cycles?
In this study, we followed 2,874 women who were using Natural Cycles to plan a pregnancy over the course of almost two years...
Data Insights
Do sleeping habits affect how effective Natural Cycles is?
Natural Cycles’ algorithm relies on temperature and menstruation data to analyze each user’s individual cycle and provide them with a daily fertility status...
Hungry for more research?
Our peer-reviewed research is published in a top selection of scientific journals.