Look, Allah has clearly delineated the stages of life.
40:67 He is the One Who created you from dust, then from the gametes, then from an embryo, and then He brings you forth as an infant. And then you attain full strength and afterward you grow old; though some of you die earlier. All this He ordains so that you reach a term appointed, and along the way, develop your insight. [22:5]
According to above, intrauterine life cannot be equated with extra-uterine life, none of these stages can equate the other. Birth of an infant is his AKHIRAH compared to the previous stage. Death of a person is his transit to the eternal Home, Al-Akhirah.
Non-existence - Intrauterine life - Extra-uterine life - Al-Akhira: Entrance into the eternal Home through the gate of death.
7:172 When your Lord brought forth generations in succession from the Children of Adam, and made them bear witness, “Am I not your Sustainer?” They said, “Yes, we bear witness.” Thus you cannot say on the Resurrection Day, “We were not aware of this.”
[Min Zuhoorihim = From their posterity = In succession = Their seed = One generation following another. The uninterrupted survival of mankind is a telling witness for them that their is an Almighty Sustainer of the Universe]