Any fertilized egg is an organism in the embryonic stage of development.
A fertilized human egg is a human being in the embryonic stage of development. That’s what ‘the science’ says. All ethical considerations follow from that, in a just society.
So you acknowledge that its an embryo and not a baby. Progress.
But actually upon fertilization its called a Blastocyst.
 
	 
 
		 
 
		 
 
		 
 
		
 
 
		