Alive Date

The Journey of Life

Explore the incredible milestones from conception to birth

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The Journey of Life

Tap any milestone to learn more about each amazing stage

How You Grew Before You Were Born

Move the slider to follow the path from the first cell to a full-term baby — day 0 through day 266.

Prenatal development illustration at week 2

Hello, First Cell

~0.1 mm

Right now, one cell meets another—and the story of you officially begins.

Day 0Day 0Day 266

0% of the journey

Growing Week by Week

How well do you know life before birth?

Prompt 1 of 5Correct: 0

When does the embryonic heart begin beating rhythmically?