The notion that she was sinless didn't come about until the 300s. But hey, whatever you want to think. Ignore the meaning in the Greek. Ignore common sense. March on your way little sheep. Just be aware, the wolf has a mean bite.
Have you read Matthew 25? Does it apply to you? Please tell me by what convoluted theory you believe that ANYONE'S soul is in peril because they refuse to succumb to the Protestant notion that the Blessed Virgin Mary had more than one child?