week to week pregnancy calculator
A week-to-week guide to track your baby's development and your body's changes.
Due Date Calculator
Enter the first day of your last menstrual period (LMP) to begin.
Your Due Date
You are approximately pregnant.
Your estimated due date is .
days to go!
This Week's Milestones
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👩 Your Body
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Comprehensive week to week Pregnancy Guide
Navigating the incredible journey of pregnancy can be both exciting and overwhelming. This guide, paired with our calculator, offers detailed insights to help you track your progress and prepare for the arrival of your little one.
How the Calculator Works
A due date calculator estimates your baby's arrival based on the first day of your last menstrual period (LMP). It adds 280 days (or 40 weeks) to your LMP date. Remember, this is an estimate—only about 5% of babies are born on their exact due date!
The First Trimester: Weeks 1-13
This is a period of rapid development. You may not look pregnant, but your body is working hard. Key symptoms often include morning sickness and fatigue. Taking a prenatal vitamin with folic acid is crucial.
The Second Trimester: Weeks 14-27
Often called the "golden trimester," this period is typically more comfortable. Morning sickness usually subsides, and you might feel your baby's first movements, a magical feeling known as "quickening."
The Third Trimester: Weeks 28-40+
You're in the home stretch! This final trimester is about preparing for labor and delivery. Your baby will grow significantly, and their brain and lungs will fully mature. It's a good time to pack your hospital bag and finalize your birth plan.
Frequently Asked Questions
Is a pregnancy calculator accurate? 🧐
Our calculator provides a reliable estimate based on a 40-week gestation. Think of it as a guide, not a guarantee! Your healthcare provider will give you the most precise information.
What are the first signs of pregnancy? 🤔
The earliest signs can vary, but many people notice a missed period, tender breasts, morning sickness, and fatigue. Every pregnancy is unique!
When should I tell people I'm pregnant? 📣
This is a personal decision! Many people wait until after the first trimester (around 12 weeks), as the risk of miscarriage decreases. However, there's no right or wrong time—it's completely up to you.
How much weight should I gain? ⚖️
Recommended weight gain depends on your pre-pregnancy BMI. For a healthy BMI, the guideline is 25-35 pounds. It's always best to chat with your doctor for a personalized plan.