🤰🏻 Pregnancy Due Date

👶 Private & Safe: Your dates are processed locally. We do not store any personal health data.
Standard is 28 days.
⚠️ Medical Disclaimer: This tool provides estimates based on standard averages. Every pregnancy is unique. For accurate medical advice and dates, please consult your doctor.

How to Use the Pregnancy Due Date Calculator

The Pregnancy Due Date Calculator is an easy-to-use health utility designed to help expecting parents estimate their baby's arrival date. Navigating pregnancy is an exciting journey, and knowing your estimated due date (EDD) is the crucial first step in planning for your new family member. This tool not only calculates your expected delivery day but also helps you track your baby's estimated physical size and anticipate key developmental milestones across all three trimesters.

How the Due Date is Calculated

Most healthcare providers calculate pregnancy due dates using a standard medical formula based on the first day of your Last Menstrual Period (LMP). Even though conception typically occurs about two weeks after this date, using the LMP is the global medical standard because it provides a concrete, memorable starting point. Our calculator utilizes this exact same trusted formula to give you a reliable baseline estimate for your pregnancy timeline.

Step-by-Step Tracking Guide

  1. Select Your LMP: Use the calendar input to select the first day of your last normal menstrual period.
  2. Adjust Your Cycle: If your typical menstrual cycle is longer or shorter than the standard 28 days, you can adjust the cycle length to generate a more personalized estimate.
  3. Discover Your Due Date: Instantly view your Estimated Due Date (EDD) and current gestational age in weeks and days.
  4. Explore Milestones: Scroll down to view your trimester timeline, upcoming developmental milestones, and fun fruit-size comparisons for your growing baby.

Frequently Asked Questions (FAQ)

Q: Is my personal health and pregnancy data kept private?
A: Yes, completely. Hapsas operates on a strict privacy-first, client-side architecture. Your sensitive dates and health information are processed locally on your own device and are never uploaded, stored, or tracked on any external servers.

Q: Will my baby definitely be born on the exact estimated due date?
A: Not necessarily! Only about 4% to 5% of babies are born on their exact calculated due date. Your EDD is simply a helpful target; it is completely normal for babies to arrive anytime between 37 and 42 weeks of pregnancy.

Q: Does this tool replace my doctor's official dates?
A: No. This tool is provided strictly for informational and educational purposes. Every pregnancy is unique. Always rely on your OB-GYN, midwife, or healthcare provider for official medical advice and medically confirmed due dates via ultrasound.