PregnancyCalcpregnancycalc.dapplesoft.com
#1 Trusted Pregnancy Tool

Know Your Baby's Arrival Plan With Confidence

Calculate your due date instantly using LMP, conception date, or IVF transfer. Get a personalized timeline of milestones and trimester updates.

Calculate Your Due Date

Personal Details (Optional)

28 days
20 days28 days (Avg)45 days

How It Works

  • 1.Choose your calculation method (LMP is most common).
  • 2.Enter your dates accurately.
  • 3.Get a full timeline of your pregnancy journey!

How It Works

Getting your timeline is simple. We use standard medical formulas to estimate your baby's arrival.

Choose Method

Select LMP, Conception, or IVF based on what you know.

Enter Date

Input your specific date. We adjust for cycle length automatically.

Get Results

Receive a detailed timeline, milestones, and downloadable chart.

Your Pregnancy Journey

Understanding the three stages of pregnancy.

Weeks 1-13

First Trimester

The baby's body structure and organ systems develop. Most miscarriages and birth defects occur during this period.

Weeks 14-27

Second Trimester

Often called the "golden period" as morning sickness fades. You'll start to feel the baby move and can find out the gender.

Weeks 28-40+

Third Trimester

The baby grows rapidly to prepare for birth. You may feel more uncomfortable as the baby takes up more space.

Pregnancy Guides

Expert articles to guide you through every week.

2025-10-156 min read

How to Calculate Your Pregnancy Due Date: A Complete Guide

Learn the science behind Naegele's Rule, how doctors estimate your due date, and why LMP is more commonly used than conception date.

Read Article
2026-04-095 min read

Ultrasound Dating: Understanding CRL and Your Due Date

Discover why ultrasound is the most accurate way to date a pregnancy and how Crown-Rump Length (CRL) is used to calculate your due date.

Read Article
2025-10-208 min read

Pregnancy Trimesters Explained: What Happens When

A comprehensive breakdown of the three trimesters of pregnancy. Know what to expect for your body and your baby in each stage.

Read Article
View All Articles

Frequently Asked Questions

Common questions about due dates and pregnancy calculations.

We offer four medical-grade calculation methods: Last Menstrual Period (LMP), Conception Date, IVF Transfer (3-day or 5-day), and Ultrasound (CRL). Each method uses validated clinical formulas to estimate your 40-week due date.
CRL stands for Crown-Rump Length. It is the measurement of your baby from head to bottom during an early ultrasound. This is the most accurate way to date a pregnancy, especially if you have irregular cycles or are unsure of your last period.
Yes! Our calculator generates a personalized timeline of key milestones (like the 20-week anatomy scan). You can use the 'Add to Calendar' button to sync these dates directly to your Google Calendar or download an ICS file.
While our calculator uses standard medical formulas, only about 5% of babies are born exactly on their due date. Most are born within two weeks before or after. An early ultrasound (CRL) is generally the most accurate method.
You should schedule an appointment as soon as you get a positive home pregnancy test. Early prenatal care is essential for the health of both you and your baby.
Read detailed FAQ page