Christ is uncreated, he was infinitely old before he was conceived. The notion that he bonded his spirit with a microbial worm at conception is masochistic. Christ is no [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse], he would not want to be a worm.
Since we are all made in the image of God it would be inconsistent if our spirits were not made until conception and we had no pre-existence. The fact that we are not carbon copies of God doesn't mean we should be opposites with Christ infinitely old at conception and us 0.
My frame was not hidden from you when I was made in the secret place, when I was woven together in the depths of the earth. Your eyes saw my unformed body.
Psalm 139:15-16
The word frame is also translated as "bones" and "substance". Here are the other 2 verses where the same Hebrew word is used:
Deu 8:17
And thou say in thine heart, My power and the
might H6108 of
mine hand hath gotten me this wealth.
Job 30:21
Thou art become cruel to me: with thy
strong H6108 hand thou opposest thyself against me.
Strong's definition of H6108 is: power, bones, might.
In Ephesians 1:21 Powers and Mights are two categories of angels. My implication here is that it refers to an angel-like spirit that is less formed. A baby angel if you will.
I believe that soul & spirit are conscious, the real source of consciousness in fact, and that no conscious being would want to be trapped in a microbial worm or a fetus that is visually indistinguishable from a chick fetus.
When I was 12 my grandfather who raised me brought up the subject of how my mother's side of the family had wanted my mother to get an abortion, but he fought ferociously against it. He went on at some length about it.
I remember thinking, I appreciate the sentiment, I was thankful to be raised by him, but I wasn't really that moved because my immediate thought was I would have simply been born somewhere else. Less ideal circumstances and genetics maybe, but I'd still be here.