As you do not know the way the spirit comes to the bones in the womb of a woman with child, so you do not know the work of God who makes everything. Ecclesiastes 11:5 (ESV)
This quote states clearly that the "spirit comes to the bones in the womb of a woman with child". This spirit, in my understanding, is the child's human spirit, as opposed to the Spirit of God that comes to a person to do the work of regeneration and the many blessings that flow out of that work.
The spirit "comes to the bones", which implies that it does not come until bones are formed, beginning at around 9 weeks.
Can this scripture be used to determine the beginning of a human life? Also, what do various denominations teach about the beginning of a human life in relation to this verse?