Although Christmas celebrations focus on the manger, the miracle of the Incarnation did not happen in Bethlehem. The “Word became flesh” not at the time of the virgin birth, but when Jesus was conceived in Mary’s womb, as heralded by the angel Gabriel.
The value of human life in the womb is key to the way this account is told in the Bible. The Greek word which refers to a preborn baby in Luke 1:41 is the exact same word used for newborn Jesus in Luke 2:12, as he lay in the manger. There is no difference (except that one was seen, and the other was unseen).