With fiber optic wire technowlogy we can now film the stages of a baby's growth whithin the womb however the muslim Holy book the Quran stated all of these stages in an amazing detail.
In the name of God most gracious most merciful
O mankind! If ye are in doubt concerning the resurection, the lo! We have created you from dust, then from a drop of seed, then from a clot, then from a bite of flesh shapely and shapeless, that We make it clear for you.
REFERENCE: (Chapter 22) part of verse"5"
Clot in the Arabic language can mean the name given to leaches which the baby resembles its looks during the very early stages of its developement then this subsequently developes to a shape simmilar to abite made impression when the spine of the little baby starts to form.
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