Yes. Mary was born a sinner. Jesus was her Savior, as she herself said. Very simple.
This is what has been debated about in this entire thread. From what I understand you saying, you do believe that from the moment we are born (or dare I say it from the moment we are conceived), we are sinners since we have the sin of Adam and Eve on us, correct?
No, she wasn't -- because Jesus is her Savior.