Ovulation & Fertile Window Calculator in HTML/JS

Inspiration

tracking fertility and cycle metrics should be fast, private, and accessible directly in the browser without requiring heavy app downloads or forced sign-ups.

What it does

This utility takes the start date of the last menstrual period and average cycle length to compute:

• Estimated Ovulation Date: (Cycle Length - 14 days)
• Fertile Window: Range starting 4 days before ovulation and ending 1 day after.

How we built it

Built using vanilla HTML5, CSS3 for responsive styling, and modern JavaScript for instant client-side date manipulation.

Try It Out

For a live working demo, check out the full web application on Global Tools Box.

Built With

• css3
• html5
• javascript
• web-application