Disclaimer
Disclaimer
Last updated: October 2026
OvuLivo is an ovulation calculator that predicts ovulation and the fertile window from the last period and cycle length and lays them onto a cycle calendar. It estimates the next ovulation by counting back roughly fourteen days from the projected next period and marks the fertile window around it, which is why the answer moves when the cycle length changes. Everything below concerns that specific calculation and the values it involves, and nothing beyond it.
Practically, all the calculation needs is your last period date and cycle length. Typical reasons people open OvuLivo include planning around an irregular cycle, and in every case the work happens on the visitor's own device rather than ours.
The nature of this site
ovulivo.com is an informational site. What OvuLivo produces are estimates of a calculation, not measured facts and not professional guidance.
Health and body-metric tools
Estimates produced by OvuLivo — ovulation, fertile windows and cycle dates, and figures of that kind — come from population-level formulas. Individual values vary substantially. These tools do not diagnose, treat, cure or prevent any disease. Speak to a qualified healthcare professional before starting a diet, supplement or exercise program, especially if you are pregnant, managing a medical condition or taking medication.
Links to other sites
External links are offered for reference only. We neither control nor vouch for outside content or its accuracy.
Advertising
The Site is funded by advertising. No advertiser has any say over a result, and no ad should be read as an endorsement.
No warranty of any kind
The assumption that matters most for OvuLivo is that your input matches the model. It estimates the next ovulation by counting back roughly fourteen days from the projected next period and marks the fertile window around it, which is why the answer moves when the cycle length changes. When it does not — or when rounding, unit handling or browser behavior intervenes — no warranty attaches to the Site, careful as we are with the method.
Before you act on a result
Make sure any result suits your own situation before you act on it. If you think something is wrong, the contact page is the quickest way to let us know.