Ovulation & Fertility Calculator

A compassionate tool to help you understand your reproductive cycle and plan for the future.

Cycle Details
Days
Health Tip: Stress and lifestyle changes can affect your cycle. Tracking your period over several months helps identify your unique pattern.
Estimated Ovulation Date
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Fertility Milestones Estimated Date
Most Fertile Window --
Potential Due Date --
Predict your fertile window by entering your last period date on the left.

Navigating Your Fertility Journey

Understanding your cycle is a key part of fertility and reproductive health. At ToolRift, we've designed our Ovulation Calculator to provide women with a reliable window of fertility based on their unique menstrual cycle data.

How Ovulation Tracking Works

The standard ovulation prediction is based on the 14-day rule. If you have a regular 28-day cycle, ovulation typically occurs on the 14th day. However, cycles vary. Our tool adjusts these calculations based on your specific cycle length to identify your "fertile window"—the days leading up to and including ovulation when conception is most likely.

Why I Built This Tool at ToolRift

Hi, I am Maggi Rogers. Family planning is one of the most personal journeys anyone can undertake. When I launched ToolRift, I wanted to ensure that our health tools were accessible, accurate, and free from invasive tracking. This tool provides a mathematical estimate to help you better understand your body's rhythm.

While this calculator is a powerful estimation tool, it is important to remember that it should not be used as a primary method of contraception. We always recommend consulting with your healthcare provider for medical matters concerning fertility and reproductive health. Our goal is to empower you with information, helping you navigate your path with clarity and peace of mind.