Infinite Due Date Calculator
Estimate your pregnancy timeline with a private, clinically recognized calendar tool.
This estimation uses Naegele's rule, which is the standard clinical method for determining pregnancy duration.
How is a Due Date Calculated?
A standard pregnancy lasts approximately 40 weeks (or 280 days) from the first day of your last menstrual period (LMP). Our online due date calculator uses Naegele's rule to provide a high-fidelity estimation of your timeline. While only 4% of babies are born on their exact due date, this 10-month calendar benchmark is essential for tracking development milestones.
Understanding the Trimesters
A pregnancy is divided into three sections: the first trimester (weeks 1-12), second trimester (weeks 13-26), and third trimester (weeks 27 until birth). By using our private pregnancy auditor, you can prepare for each phase. This secure due date checker helps you visualize your journey with zero data-scraping or intrusive trackers.
Privacy and Privacy Accuracy
At 99tool.in, we understand that pregnancy is a deeply personal journey. Our private due date calculator runs entirely in your local browser sandbox. We do not store your biological data or event dates. This secure health diagnostic is the safest way to estimate your baby's timeline without being subjected to pervasive advertisement tracking or third-party data collection.