Is this the same as a due date calculator?

It includes due date estimation, but it also adds conception timing, gestational age, and trimester milestones.

How accurate is the due date estimate?

It is a practical estimate only. Medical dating and ultrasound advice are more important if they differ.

Irregular cycles can make LMP-based estimates less reliable, so the result may differ from a clinician's assessment.

No. It is for general guidance only and does not replace professional care.

Estimate due date, conception timing, gestational age, and key pregnancy milestones.

Informational guidance only. This calculator does not replace medical advice, antenatal care, or clinical dating.

First day of last period

Average cycle length

days

Get your score

Get your free Protection Score

Check how protected you are, spot the biggest gaps, and then decide what to do next.

Answer a few quick questions

See where your biggest protection gaps may be

Move into the right next step if you want help

What you get

A quick view of your current protection position

A clearer idea of where the biggest gaps may be

A direct route to tailored help if you want it