GOD'S WORD® Translation
Your eyes saw me when I was only a fetus. Every day [of my life] was recorded in your book before one of them had taken place.

American Standard Version
Thine eyes did see mine unformed substance; And in thy book they were all written, Even the days that were ordained for me , When as yet there was none of them.

Berean Study Bible
Your eyes saw my unformed body; all my days were written in Your book and ordained for me before one of them came to be.

Douay-Rheims Bible
Thy eyes did see my imperfect being, and in thy book all shall be written: days shall be formed, and no one in them.

English Revised Version
Thine eyes did see mine unperfect substance, and in thy book were all my members written, which day by day were fashioned, when as yet there was none of them.

King James Bible
Thine eyes did see my substance, yet being unperfect; and in thy book all my members were written, which in continuance were fashioned, when as yet there was none of them.

World English Bible
Your eyes saw my body. In your book they were all written, the days that were ordained for me, when as yet there were none of them.

Young's Literal Translation
Mine unformed substance Thine eyes saw, And on Thy book all of them are written, The days they were formed -- And not one among them.

Psalm 139:16 Additional Translations ...