No, the Bible tells us that Adam was made of the dust of the ground.
Genesis 2:7 And the Lord God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living being. (NKJV)
Eve, however, was made of Adam’s rib.
Genesis 2:21-23 And the Lord God caused a deep sleep to fall on Adam, and he slept; and He took one of his ribs, and closed up the flesh in its place. Then the rib which the Lord God had taken from man He made into a woman, and He brought her to the man. And Adam said: “This is now bone of my bones and flesh of my flesh; She shall be called Woman, because she was taken out of Man.” (NKJV)
Now a belly button comes from an umbilical cord. Umbilical cords connect the mother to the baby in the womb.
But Adam and Eve didn’t grow in a womb!
That means they didn’t have belly buttons!