Calculate your baby's estimated due date by LMP, conception date, IVF transfer, or ultrasound.
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Baby Due Date Result
Estimated Baby Due Date
2027-06-23
Gestational Age4 Weeks, 2 Days
Estimated Conception Date2026-09-30
First Trimester MilestoneEnds 2026-12-16
Second Trimester MilestoneEnds 2027-03-24
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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.
Gestational Calculation Methods
EDD = Conception Date + 266 Days | IVF Day 5 = Transfer Date + 261 Days
Derives full 40-week gestational timeline using specific conception or clinical transfer dates.
Variables Defined
Conception Date:Estimated date of ovulation/fertilization.
IVF Transfer:Date 3-day or 5-day blastocyst was transferred.
Example Conception Due Date Calculation
Conception date of May 15th.
Given Inputs
Add 266 days (38 weeks):May 15th + 266 days
Calculate target date:February 5th of following year
Calculation ResultEstimated Due Date = February 5th
Frequently Asked Questions about Due Date Calculator
