".... There is much confusion as to the precise meaning of the Virgin Birth. It is not to be confused with the Virginal Conception of Our Lord. The Church, from the earliest times, has articulated the Perpetual Virginity of Our Lady as pertaining to three distinct moments: before the birth of Jesus (ante partum), during the birth of Jesus (in partu), and after birth of Jesus (post partum). Virtually every time the magisterium has spoken on the subject, this threefold distinction is made. This teaching is derived from the early fathers of the Church, who maintained, defended and made the teaching a universally held truth..."
Via Tea at Trianon comes a defence of the perpetual virginity of the Blessed Virgin Mary and, in particular, the full meaning and theological relevance of the Virgin Birth.