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CalcBright Calculators

by com.calcbright
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Pregnancy Due Date Calculator

pregnancy_due_date_calculator
Read-onlyIdempotent

Your due date is 280 days from your last period, adjusted here for cycle length. Also works from a conception or IVF transfer date, with weeks pregnant today. Web page: https://calcbright.com/pregnancy-due-date-calculator

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
dateNoFirst day of last period (YYYY-MM-DD)2026-06-01
cycleNoAverage cycle length (days)
methodNoCalculate fromlmp

Schema Changelog

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