Due Date Calculator 🤱
Calculate your estimated pregnancy due date and key milestones from your last menstrual period.
Estimated Due Date
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Current Week
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Trimester
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Days Remaining
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Conception Date
⚠️ Note: This calculator provides an estimate only. Always consult your healthcare provider for accurate pregnancy dating and medical advice.
How Due Date is Calculated
The standard method (Naegele's Rule) adds 280 days (40 weeks) to the first day of your last menstrual period. This assumes a 28-day cycle — the calculator on lifestylecalcfree.com adjusts for different cycle lengths automatically.