Is Pregnancy Due Date Calculator free to use?

Yes, Pregnancy Due Date Calculator is 100% free. No registration or subscription required.

Is my data safe with Pregnancy Due Date Calculator?

Absolutely. All processing happens entirely in your browser. Your files are never uploaded to our servers, ensuring 100% privacy.

Pregnancy Due Date Calculator

Estimate your baby's due date and track your pregnancy progress based on your last period.

First Day of Last Period

In-Depth Guide

Everything you need to know

Planning for a new arrival? Our Online Due Date Calculator uses Naegele's Rule, the standard medical method for estimating the 40-week gestation period.

Pregnancy Milestones:

First Trimester: Weeks 1-12. Crucial developmental phase.
Second Trimester: Weeks 13-26. The "golden period" of pregnancy.
Third Trimester: Week 27 to birth. Final preparation for delivery.