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Qalc IA
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Pregnancy Due Date
All health tools
Calculate your estimated due date based on last menstrual period.
Pregnancy Due Date
Method
Lmp
Clinical Standards
Pregnancy Timeline
Ready Desc
About this calculator
Overview
The estimated due date is calculated using Naegele rule.
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Pro Tips
Only 5% of babies are born on their due date.
Ultrasound dating is more accurate than LMP dating.
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Fun Facts
"Pregnancy lasts approximately 40 weeks from LMP."
"Naegele rule adds 7 days to LMP and subtracts 3 months."
