Original: But in Roman Catholic and Orthodox usage, the term "Virgin Birth" means not only that Mary was a virgin when she conceived, but also that she gave birth as a virgin (remaining a virgo intacta), a belief attested since the second century.
Simplified: But in Roman Catholic and Orthodox usage, the term "Virgin Birth" means not only that Mary was a virgin when she conceived, but also that she gave birth as a virgin (remaining a virgo intacta).