"Also, you said that she was given special grace at conception, which must be what makes it immaculate."
As Kosta pointed out, you have mixed up Orthodox and Catholic teaching on some points. This statement is Catholic dogma, not Orthodox.
While I think that might also be true as I am learning the different positions, I think part of this is that I originally assumed you were Catholic, when I should not have. From later postings, I figured out you were Orthodox. Sorry for the mistake.