Health

LMP Calculator

Track pregnancy progression from Last Menstrual Period

First day of Last Menstrual Period (LMP)

Today is 08 Jul 2026.

Estimated Due Date

13 Feb 2027

8 weeks 4 days · Trimester 1

Current Week

Days Pregnant

Days to Due Date

220

Trimester

Formula

EDD (Naegele's rule) = LMP + 280 days (40 weeks)

Example: LMP on 1 Jan 2026 → EDD ≈ 8 Oct 2026.

How to use

Pick the first day of your last menstrual period.
View your due date, current week and trimester.

Benefits

Track pregnancy milestones week by week.
Plan prenatal appointments and tests.

Frequently Asked Questions

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This is NOT medical advice. Always consult your obstetrician for any concerns about your pregnancy.

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