Hi Nathan,
Since the church is not mentioned anywhere in Revelation chapters 6 - 18; how could Revelation 12 be speaking of Mary? Revelation 12 is speaking of the nation Israel, which descended from Abraham and through the Jewish nation, we have our Savior, the Messiah.
My boss is a Jewish carpenter -- and He is the child being referenced in Revelation 12, which comes, or, in a sense, is birthed out of the Jewish race.
Revelation 12:13-14, "And when the dragon (Satan) saw that he was thrown down to the earth, he persecuted the woman (Israel) who gave birth to the male child. But the two wings of the great eagle were given to the woman (Israel), so that she could fly into the wilderness to her place, where she was nourished for a time and times and half a time, from the presence of the serpent."
We know that, during the seven year Tribulation, the Jewish believers, i.e., the remnant of Israel, will be taken to safety in the wilderness for 3 1/2 years -- to keep them safe from the Antichrist's attacks.
Now, when was Mary ever taken into the wilderness for 3 1/2 years to protect her? No, my Friend, there is no way you can squeeze Mary into Revelation.
God bless, have a wonderful, blessed day,
Bill