[blue-duncan]

I don't see where we disagree. Mary remained a virgin through the birth of Jesus. To read more into that is conjecture.

[annalex]

Mary remained a virgin through the birth of Jesus [per St. Augustine]

Bornacatholic supplied additional cites from Augustine that clarify that he believed in her perpetual virginity till death, so whether the phrase "remained a virgin through the birth" can mean anything other than the Catholic doctrine of perpetual virginity is moot.