Pregnancy Tools

A comprehensive suite of tools for expecting parents. Calculate your due date, track weight gain, and monitor your pregnancy progress.

Due Date Calculator

Find your expected delivery date and key milestones.

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Conception Calculator

Estimate the date your baby was conceived.

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Weight Gain Tracker

Calculate your target weight gain based on BMI.

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Ovulation Calculator

Predict your fertile window and ovulation date.

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Supporting Your Journey into Parenthood

Welcoming a new member to the family is one of life’s greatest adventures, but it also comes with many questions. Sellooo’s suite of pregnancy tools is designed to provide expecting parents with clarity, organization, and peace of mind during these forty exciting weeks.

From pinpointing your estimated due date to tracking healthy weight gain milestones, our calculators use medically recognized standards to keep you informed. We believe that during this sensitive time, your privacy is paramount—that’s why all our pregnancy tools process your data locally in your browser, ensuring your journey remains your own.

Week-by-Week Milestones
LMP & Conception Methods
BMI-Based Weight Tracking
100% Private & Anonymous

100% Free & Private

No hidden fees, no registration, and no data storage. Your privacy is our priority.

Fast & Reliable

All tools are optimized for speed and accuracy. Get results in seconds, not minutes.

Works Everywhere

Fully responsive design works on desktop, tablet, and mobile. No app installation needed.

Frequently Asked Questions About Pregnancy Tools

Find answers to common questions about our pregnancy tools and how they can help you.

Due date calculators use the standard 280-day (40-week) pregnancy model. Only about 5% of babies arrive exactly on their due date, so use this as an estimate and consult your healthcare provider.

Absolutely. All calculations happen locally in your browser. Your personal health information never leaves your device.

Still have questions? Contact us and we'll be happy to help.