Depending on what degree of ex nihilo you mean, and subject to the Bible, I wouldn't necessarily blame her if she did in many cases. Technology is going to force us all into some very new areas soon that are going to be pretty tough. For example, while it is relatively easy to be against human cloning, I would think that the Church is going to have to take some sort of stand when human body part cloning farms become commonplace.
Put your mind at rest ,Dear friend, the Church already has.
PONTIFICIA ACADEMIA PRO VITA
REFLECTIONS
ON CLONING
http://www.vatican.va/roman_curia/pontifical_academies/acdlife/documents/rc_pa_acdlife_doc_30091997_clon_en.html#HUMAN%20RIGHTS%20AND%20FREEDOM%20OF%20RESEARCH
Excerpt
“A prohibition of cloning which would be limited to preventing the birth of a cloned child, but which would still permit the cloning of an embryo-foetus, would involve experimentation on embryos and foetuses and would require their suppression before birth—a cruel, exploitative way of treating human beings.
In any case, such experimentation is immoral because it involves the arbitrary use of the human body (by now decidedly regarded as a machine composed of parts) as a mere research tool. The human body is an integral part of every individual's dignity and personal identity, and it is not permissible to use women as a source of ova for conducting cloning experiments.
It is immoral because even in the case of a clone, we are in the presence of a “man”, although in the embryonic stage.”