Sources? Links> Documentation? Proof that it was Mary herself and she said that, which I find highly improbable in that culture.The former is an invention of mariophobic Protestants who seriously think that the Mother of God, after giving a miraculous birth to the divine Son, proceeded to fool around with her husband nd obliterate the proof of that very miracle.
Fool Around? It's her legally married husband. That phrase makes it sound like she's hooking up in the back seat of the family station wagon.
Lots of children were considered a sign of God's blessing in those days. If she had only one, she would not have been considered blessed.
This is rather an odd position for the Catholic church to take here considering their position on large Catholic families and birth control.
See my post to Boatbums made about a minute ago.