Pregnancy Calculator

Calculate your due date, track fetal development, and get personalized pregnancy information.

First Day of Last Menstrual Period

Average Cycle Length (days)

Calculation Method

Last Menstrual Period

Conception Date

Enter your details to calculate

Get personalized pregnancy information based on your last menstrual period or conception date.

This Week in Your Pregnancy

Week 1

Early Development

Your body is preparing for pregnancy. The fertilized egg travels to the uterus and begins implantation.

Baby Development

Mom's Changes

Pregnancy Timeline & Milestones

Key Features

Due Date Calculator

Accurately calculate your estimated due date based on multiple methods.

Week-by-Week Tracking

Track fetal development and changes in your body throughout pregnancy.

Milestone Tracker

Stay informed about important pregnancy milestones and prenatal appointments.

Health Insights

Get personalized health tips and recommendations for each trimester.

Appointment Reminders

Set reminders for important prenatal visits and tests.

Share Results

Easily share your pregnancy details with family and healthcare providers.

How to Use the Pregnancy Calculator

Step 1: Enter Your Information

Provide the first day of your last menstrual period or your conception date. The calculator works best with accurate information.

Step 2: Review Your Results

Get your estimated due date, current pregnancy week, trimester, and days remaining until delivery.

Step 3: Explore Weekly Details

Learn about fetal development and changes in your body for your current pregnancy week.

Step 4: Track Milestones

View important pregnancy milestones and prenatal care recommendations for each trimester.

Understanding Pregnancy Calculations

Pregnancy is typically calculated from the first day of your last menstrual period (LMP), which is about two weeks before conception actually occurs. This method is used because it's often difficult to pinpoint the exact date of conception.

A full-term pregnancy is about 40 weeks from the LMP, which equals 280 days. However, only about 5% of babies are born on their exact due date. Most births occur between 37 and 42 weeks of pregnancy.

Important Notes

This calculator provides an estimate - your healthcare provider will give you a more accurate due date
If you have irregular cycles, the calculation might need adjustment
An ultrasound in early pregnancy can provide the most accurate dating
Always consult with your healthcare provider for personalized medical advice