No.
And if by “unstained” you mean sinless, you are in grave error. Mary needed a saviour just as much as you and me.
and she said as much. it wasn’t just for show that she said it, either.
Ever hear of the Immaculate Conception? I doubt that you would believe it. But Mary was chosen by God to be sinless so that she could carry the sinless Jesus in her womb. She is the Ark of the New Covenant.