Note that the Savior, Our Lord, GOD and Savior, Jesus Christ was/is God. A mother does not "create" her child -- my mother is not my creator, neither was Jesus Christ, God's mother, His creator. In a strange twist, she was mother, i.e. she bore her own Creator.
She did not bear the Holy Spirit or the Father, but she DID bear the Son, GOD the Son, hence the term mother of God -- this very term Theotokos was first used to confound those who said Jesus was a subordinate divine being, some super-angel.
One cannot say "Oh, she was just the mother of the Savior not God" because the Savior was/is God. One cannot say she is the mother of God the Father or the Holy Spirit either as she wasn't. One cannot say that she was the mother i.e. the bearer of just Jesus the man as we then seem to imply that there was/is a separation between His divine and human natures whereas we know that they are/were inseparable and that Jesus was not some man who became God or some man possessed by God.
One cannot say "Oh, she was just the mother of the Savior not God" because the Savior was/is God.
Well make up your mind...You're speaking out of both sides of your mouth at the same time...
There are not three Gods...There is one God...