Denomination is irrelevant. Biblical facts are.
You've proven nothing other than the RCC will twist a verse to pull something out that's not there.
By your implication, Mary as the mother of God, this is saying God/Jesus has not always existed.
Additionally, to carry your line of thinking out...Mary was found to be pregnant through the Holy Spirit. That is how she became pregnant with Christ. Are you willing to say that the Holy Spirit is the Father of Christ????
I hope not for that would be indeed be blasphemy. But that is what you have to go with with your line of thinking. If Mary is the "mother of God" then the Holy Spirit has to be the "Father of God." Sheer utter nonsense and blasphemy if one believes that.
If you will read the post I provided to you earlier and forget the false teachings of "tradition" you'll understand this.
Again...no where in the NT is the title "mother of God" used. You're reading something into the text that's just not there.
Woman; why do you involve me? My time is not yet come.