Pregnancy Due Date Calculator
Estimate your due date, trimester breakdown, and fetal milestones!How would you like to calculate?
About Prenatal Care & Fetal Development
Prenatal care is crucial for ensuring the health of both the mother and the developing fetus. Regular checkups allow for early detection of potential issues, nutritional guidance, and essential screenings. Fetal development occurs in clearly defined stages, with major organs and systems forming in the first trimester and maturation in the second and third.
- First Trimester: Critical formation of neural tube, heart, and limbs. Highest risk for miscarriage.
- Second Trimester: Rapid growth, bone formation, senses develop, kicks may be felt.
- Third Trimester: Lungs mature, weight gain, brain development. Preparing for birth.
Tip: Healthy lifestyle habits such as a balanced diet, hydration, prenatal vitamins, and gentle exercise contribute to better outcomes for both baby and parent.
Pregnancy Calculator – Track Your Due Date, Trimester & Baby Growth Easily
Whether you’re newly expecting or planning ahead, understanding your pregnancy timeline is both exciting and essential. The Pregnancy Calculator is a smart, user-friendly tool that helps you estimate your due date, track trimester milestones, and monitor fetal development—all in seconds.
From your last menstrual period (LMP) to your due date and every important week in between, this calculator keeps you informed and prepared.
📌 What Is a Pregnancy Calculator?
A Pregnancy Calculator is a digital tool used to estimate:
- 🍼 Due date
- 🌱 Weeks pregnant
- 📅 Trimester progress
- 👶 Estimated fetal growth
It typically uses the first day of your last menstrual period (LMP) as the base to project a standard 40-week gestation period.
Many healthcare professionals use similar methods during early pregnancy consultations.
🧮 How the Calculator Works
You simply enter one of the following:
- Last menstrual period (LMP)
- Conception date (if known)
- Ultrasound date and gestational age
- Embryo transfer date (for IVF pregnancies)
The calculator instantly provides:
- 🗓️ Estimated due date (EDD)
- 📊 Current week and day of pregnancy
- 📆 Trimester stage
- 🫶 Important milestone dates (e.g., heartbeat detection, viability week)
📊 Example of Use
Let’s say your LMP was March 1, 2025:
- Estimated Due Date (EDD): December 6, 2025
- You are currently: 18 weeks pregnant
- Current Trimester: Second
- Next milestone: Anatomy scan around 20 weeks
This gives expecting parents a clear picture of what’s ahead.
👩⚕️ Why Use a Pregnancy Calculator?
- ✅ Plan prenatal visits
- ✅ Prepare for maternity leave
- ✅ Monitor baby’s development week by week
- ✅ Know when to schedule scans & tests
- ✅ Share accurate updates with friends and family
It’s also useful for first-time parents navigating the early stages of pregnancy.
📅 Pregnancy Timeline Table
| Trimester | Weeks | What Happens |
|---|---|---|
| First Trimester | 1–13 weeks | Baby’s organs begin forming |
| Second Trimester | 14–26 weeks | Movement starts, belly shows |
| Third Trimester | 27–40 weeks | Baby gains weight, prepares for birth |
🏷️ Features Included
- Pregnancy calculator
- Due date calculator
- Week-by-week pregnancy tracker
- Baby growth chart tool
- Calculate weeks pregnant
- Trimester timeline
- Pregnancy calendar planner
- Fetal development by week
🧭 Related Calculators You May Love
- Calorie Calculator – adjust intake during each trimester
- Date Calculator – estimate doctor appointment timelines
- Water Footprint Calculator – stay hydrated during pregnancy
🔗 Trusted External Resources
- Mayo Clinic – Pregnancy Week by Week
- American Pregnancy Association – Pregnancy Calculator
- CDC – Pregnancy Basics

✅ Final Thoughts
Pregnancy is a journey filled with milestones, emotions, and questions. The Pregnancy Calculator is your digital companion—guiding you through each week with clarity and confidence. Whether you’re counting kicks or planning the nursery, this tool gives you peace of mind every step of the way.