"Your use of the word Potential in the above sentence is an admission that the fertilized egg is not Yet a fully developed human. It does not have all the parts that a fully developed human has. So it is not yet a human being and has the Potential to be but it takes 9 months or approximately 42 weeks to do that."

You have not spent two minutes thinking about potentiality and actuality.   You say I "admit" that the fertilized egg is not yet a fully developed human.  OF COURSE I do.  For you, this means it's not yet a human being.  You fail to grasp the difference between a young human being and a fully developed human being.  A new-born baby is not a fully developed human being.  It has much more development to go.   But what is its essence?  Human-ness.  Its essence is the same as that of a fully developed man or woman of 20 years old.  By your logic, the fact that the new-born is not fully developed means it's not a human being.  Do you see the absurdity of your argument?