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ភាសុយ្
🤰 Due Date Calculator
Calculate Due Date from LMP
📅 First Day of Last Period
⏰ Cycle Length (days)
(default 28)
🤰 Calculate
💡 Due date uses Naegele's rule: LMP + 280 days (40 weeks). Only 5% of babies arrive exactly on due date; +/- 2 weeks is normal.