📅 Estimate Your Baby’s Due Date
Pregnancy is an exciting journey, and knowing your expected due date helps you prepare better. Our free Pregnancy Due Date Calculator is designed to give you an easy and reliable way to estimate when your baby is most likely to arrive.
Simply enter the first day of your last menstrual period (LMP), and this calculator will instantly show you:
- ✅ Your estimated due date
- ✅ Your current gestational age in weeks and days
- ✅ The time remaining in your pregnancy journey
ℹ️ About This Calculator
A normal pregnancy usually lasts about 40 weeks (280 days). By counting from the first day of your last menstrual period, this tool provides an estimated date for your baby’s arrival.
Formula Used: Due Date = LMP + 280 days (40 weeks)
Keep in mind, only about 5% of babies are born exactly on their due date. Most arrive within a window of 2 weeks before or after. That’s why this calculator gives you a good estimate but cannot replace professional medical advice.
👉 This tool is especially useful if you’re planning your prenatal checkups, maternity leave, or just want to track your pregnancy milestones more closely.
🍼 Pregnancy Milestones
Pregnancy is divided into different stages, and each milestone is special. Below is a breakdown of key pregnancy moments:
| Stage | Approximate Date |
|---|---|
| Implantation (2 weeks) | |
| Heartbeat detected (6 weeks) | |
| End of 1st Trimester (12 weeks) | |
| Gender visible on ultrasound (16 weeks) | |
| Halfway Point (20 weeks) | |
| Start of 3rd Trimester (28 weeks) | |
| Baby is full-term (37 weeks) | |
| Estimated Due Date (40 weeks) |
Each milestone marks your baby’s growth and your journey as a parent. For example, by the 20th week, most parents can find out their baby’s gender, and by 37 weeks, the baby is considered ready for birth.
❓ Frequently Asked Questions
How is the pregnancy due date calculated?
The standard method is to add 280 days (40 weeks) to the first day of your last menstrual period (LMP). This assumes an average 28-day cycle.
How accurate is this calculator?
This calculator provides an estimate. Medical ultrasounds and doctor consultations give more accurate results, especially if you have irregular cycles.
Can my due date change?
Yes. Doctors may adjust your due date based on your ultrasound scans and baby’s growth. It’s common for the due date to shift slightly.
Why should I use a due date calculator?
It helps with pregnancy planning, scheduling doctor visits, monitoring your baby’s development, and preparing for labor.