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The First Day of Your Life: Zygote

This is a picture of you.

human development zygote
Just after the first day, 1 cell (zygote) becomes 2 cells

This is what you looked like after the first day of your life.

In all the billions of galaxies in the universe, there is only one you – and you started as just one cell, about one tenth of a millimeter in size, which divided into two, and then more, and more….

It may be strange for us to think of ourselves with such a tiny beginning. But this is the miraculous truth of human life. Created in the image and likeness of God, we are yet humble creatures. Each of us begins with the divine spark of life, formed in the womb, following the design of our Creator. You and I are, indeed, fearfully and wonderfully made (Psalm 139:14).

The answer to the question of when you became a human being is simple. You became you at conception, when your mother’s egg and father’s sperm united. Scientists, at this first stage in your life, would call you a zygote. And no serious scientist would deny that you were alive on that very first day.

When you looked like this picture, your genetic makeup was already complete. Your eye color, hair color, gender, general build, facial features, and genetic predispositions in health were set – as were your inherited traits, or natural gifts.

Nothing was added after your conception to fully make you a human being. You only needed nourishment and protection to help you to continue to grow and develop – just as you still do, now.

Your parents didn’t know that you existed on that day. But, God did. God knew His plan for you from the start. The unique role that you are able to play in your family and in society was always known by your Creator.  Every one of us has a particular mission – your mission can only be fulfilled by you.

You are intricately formed and wonderfully alive – as you have been from the beginning!  What was true on your very first day of life is still true today:
it is good that you are here.

© 2015 Christina Chase

Sources: see –

Web M.D.

Endowment for Human Development

Archdiocese of Baltimore

Christina Chase View All

Although crippled by disease, I'm fully alive in love. I write about the terrible beauty and sacred wonder of life, while living with physical disability and severe dependency. A revert to the Catholic faith through atheism, I'm not afraid to ask life's big questions. I explore what it means to be fully human through my weekly blog and have written a book: It's Good to Be Here, published by Sophia Institute Press.

6 thoughts on “The First Day of Your Life: Zygote Leave a comment

  1. Beautifully presented. One of the best and joyful explanations of we people. I shall surely share this with all….thank you, Christina. Your brilliance shines through!…….Sioux!

    Liked by 1 person

  2. Reblogged this on Divine. Incarnate. and commented:

    When did you become you?

    Although you may define yourself in many ways and see yourself differently in different stages of your life, there is only one you. You are unique in all the world – there has never been another you and there never will be. And you have always been a human being, right from the beginning. When was the beginning? Well, that’s exactly what this particular reflection answers through reason and faith, with the help of science and religion. Although the beginning of human development may seem grounded in mystery because of the hidden nature of the first nine months of life, it is also grounded in fact. And the facts are beautiful.

    I re-present this post as the first of nine consecutive reflections on early human development – the development of you.

    Liked by 1 person

  3. Reblogged this on ROSARYANDREDSOX and commented:
    Hello Friend, It is great to have you here. This is a great post I could not have said it better. Christina Chase is a wonderful writer and speaks out for life and dignity. Among other things. What do you think of this piece? Does it have you thinking and searching or is this something you already know. As I have said before and I am so grateful my parents had me. Thank you choosing life. Blessings all God Loves You!!!

    Liked by 1 person

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