Pregnancy Calculator
Calculate your due date, pregnancy week, and trimester with precision
Last Menstrual Period (LMP)
Conception Date
Your Pregnancy Results
Estimated Due Date
March 15, 2024
Your baby is expected around this date
Pregnancy Progress
Week 22 + 3 days (55% complete)
1st Trimester
2nd Trimester
3rd Trimester
Gestational Age
22 weeks, 3 days
Current Trimester
2nd Trimester
Days Passed
157 days
Days Remaining
123 days
Estimated Conception
June 22, 2023
How to Use the Pregnancy Calculator
- Choose your calculation method (Last Menstrual Period or Conception Date)
- Enter your date using the calendar picker
- Click “Calculate” to view your due date, current pregnancy week, trimester, and more
- Save or share your results for regular tracking
What is a Pregnancy Calculator?
A pregnancy calculator helps estimate key pregnancy milestones, including the expected due date, based on standard medical formulas. Most calculations are based on Naegele’s Rule, which assumes a 280-day (40-week) pregnancy from LMP.
Pregnancy Timeline Breakdown
| Trimester | Duration |
|---|---|
| 1st Trimester | Week 1 – Week 12 |
| 2nd Trimester | Week 13 – Week 27 |
| 3rd Trimester | Week 28 – Delivery |
Important Notes:
- The due date is an estimate. Actual delivery may vary by ±2 weeks.
- Results are for informational purposes only. Always consult your doctor for personalized guidance.
- This calculator uses standard 280-day pregnancy duration from LMP.