Calculate estimated due date, gestational age, and pregnancy milestone timeline.
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Pregnancy & Due Date Result
Estimated Due Date (Naegele's Rule)
2027-05-24
Current Gestational Age8 Weeks, 4 Days
Current StageFirst Trimester (Trimester 1)
Estimated Conception Date2026-08-31
Fetal Milestone Estimates~0 cm, ~0 g
Days Remaining to Due Date220 days
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Medical & Health DisclaimerThis calculator provides general educational estimates based on standard health formulas. Results are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider regarding a medical condition.
Naegele's Rule for Due Date
Due Date = LMP + 280 Days (40 Weeks)
Naegele's rule estimates due date by adding 280 days (40 weeks) to the first day of the last menstrual period.
Variables Defined
LMP:First day of Last Menstrual Period.
Cycle Length:Adjusted for menstrual cycle lengths longer or shorter than 28 days.
Example Pregnancy Calculation
LMP on January 1st with a standard 28-day cycle.
Given Inputs
Add 1 year:January 1st next year
Subtract 3 months:October 1st
Add 7 days:October 8th
Calculation ResultEstimated Due Date = October 8th
Frequently Asked Questions about Pregnancy Calculator
