Was Nefertiti the First Queen of Egypt?

It has never been proven that Nefertiti did rule Egypt. It is supposed that she is the elusive pharoah 'Smenkhare' as she added this to her full name (Neferneferuaten Nefertiti Smenkhare) shortly before the death of her husband Akhenaten. There is also evidence to support that she shared a co-regency with Akhenaten before his death and so maybe did rule when he died. Before Nefertiti there were no other female rulers so she could have been the first ruling Queen of Egypt (all pharoahs first wives were called 'Queen'), given the conventions of the time it is also very likely that she did not rule.