Pregnancy Due Date Calculator
Calculate your estimated due date and track your pregnancy progress
Calculate Your Due Date
Your Pregnancy Timeline
How to Use This Calculator
To calculate your estimated due date, simply enter the first day of your last menstrual period and your average cycle length. The calculator will provide you with:
- Your estimated due date (based on the 40-week pregnancy calculation)
- How many weeks pregnant you are currently
- Which trimester you're in
- How many days remain until your due date
- Estimated conception date
Remember that this is just an estimate - only about 5% of babies are born on their exact due date! Always consult with your healthcare provider for more accurate dating.
Key Features
Accurate Estimation
Uses standard medical calculation (Naegele's rule) for due date estimation
Trimester Tracking
Identifies which trimester you're currently in for better planning
Week-by-Week Progress
Tracks your current pregnancy week and days remaining
Cycle Adjustment
Accounts for variations in menstrual cycle length
Pregnancy Tips
Nutrition
Eat a balanced diet rich in folate, iron, calcium, and protein. Consider prenatal vitamins.
Exercise
Engage in moderate exercise like walking or prenatal yoga, with your doctor's approval.
Prenatal Care
Regular check-ups are essential for monitoring your baby's development and your health.
Hydration
Drink plenty of water - at least 8-10 glasses per day to support increased blood volume.
Frequently Asked Questions
How accurate is the due date calculation?
The due date calculation is based on standard medical guidelines. However, only about 5% of babies are born exactly on their due date. It's best to consider it as an estimated timeframe rather than an exact date.
What if I don't know the first day of my last period?
If you're unsure about your last period date, an ultrasound scan can provide a more accurate estimation of your due date based on the baby's size and development.
Does cycle length affect the due date?
Yes, women with longer menstrual cycles may ovulate later, which could affect the due date calculation. Our calculator accounts for cycle length variations.
What is Naegele's rule?
Naegele's rule is a standard way to calculate the due date by adding 1 year, subtracting 3 months, and adding 7 days to the first day of the last menstrual period.
Can my due date change?
Yes, based on ultrasound measurements in early pregnancy, your healthcare provider might adjust your due date if the fetal measurements indicate a significant difference.
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