As long as your cycles tend to fall within 24 – 35 days, you can still use Ava. Future versions of Ava will support more irregular cycles.
Ava was shown in a year-long clinical study to recognize an average of 5.3 fertile days per cycle, at 89 percent accuracy.
No, Ava cannot be used for contraception. Since our focus is helping women get pregnant, our algorithm identifies the most fertile days of the cycle. For a contraceptive product, we'd want to also identify days where it's unlikely but still possible to get pregnant. That said, if you're practicing NFP or FAM, Ava could be [...]