Calculate your estimated pregnancy due date based on your last menstrual period (LMP).
The Pregnancy Due Date Calculator helps you estimate your baby’s expected delivery date based on your last menstrual period (LMP) or conception date. This easy-to-use tool also provides helpful insights into pregnancy milestones, trimester timelines, and what to expect during each stage of pregnancy.
While every pregnancy is unique, knowing your estimated due date helps you plan prenatal care, track fetal development, and prepare for childbirth.
A pregnancy due date is the estimated date when your baby is expected to be born. Most healthcare providers calculate it by adding 40 weeks (280 days) to the first day of your last menstrual period.
It’s important to remember:
Only about 5% of babies are born on their exact due date
A normal pregnancy can range from 37 to 42 weeks
This calculator uses standard medical guidelines to estimate your due date.
Last Menstrual Period (LMP) – the most common method
Conception Date – useful if you know when conception occurred
IVF Transfer Date – for assisted reproduction pregnancies (if supported)
The tool then estimates:
Expected due date
Current pregnancy week
Trimester progression
Key pregnancy milestones
Early fetal development
Organ formation
Common symptoms: nausea, fatigue, breast tenderness
Rapid fetal growth
Reduced nausea for many people
First noticeable baby movements
Baby gains weight and prepares for birth
Increased physical discomfort
Final preparations for delivery
Your estimated due date helps:
Schedule prenatal appointments and tests
Monitor fetal growth and development
Plan maternity leave and childbirth classes
Prepare emotionally and physically for delivery
Healthcare providers use your due date as a reference point for pregnancy care—not as a strict deadline.
The Pregnancy Due Date Calculator is suitable for:
People with regular menstrual cycles
Those who recently confirmed pregnancy
Expectant parents planning prenatal care
Individuals seeking a general pregnancy timeline
For irregular cycles or high-risk pregnancies, ultrasound dating may be more accurate.
🥗 Eat a balanced, nutrient-rich diet
💧 Stay hydrated
🩺 Attend regular prenatal checkups
🚶 Engage in gentle, doctor-approved exercise
🚭 Avoid smoking, alcohol, and harmful substances
😴 Prioritize rest and stress management
The calculator provides an estimate, not an exact date. Most babies are born within two weeks before or after the estimated due date.
If you know your conception date or have had an early ultrasound, those can also be used to estimate your due date.
Yes. Your healthcare provider may adjust your due date based on ultrasound measurements, especially in early pregnancy.
Some calculators support IVF dates. For the most accurate estimate, consult your fertility specialist or healthcare provider.
Most providers recommend your first prenatal visit between 8 and 10 weeks, or earlier if you have medical concerns.
Going past your due date is common. Your healthcare provider will monitor you closely and discuss next steps if pregnancy continues beyond 41–42 weeks.
The Pregnancy Due Date Calculator is intended for informational and educational purposes only. It does not replace professional medical advice, diagnosis, or prenatal care. Always consult a qualified healthcare provider for pregnancy-related guidance.
Knowing your estimated due date helps you stay informed, organized, and confident throughout your pregnancy. Use this calculator as a helpful guide—and enjoy each step of your journey toward welcoming your baby 🤍