Pseudo-Chrysostom
Catena Aurea · Matthäusevangelium 1
Now the birth of Jesus Christ was on this wise: When as His mother Mary was espoused to Joseph, before they came together, she was found with child of the Holy Ghost.
Therefore both espoused and yet remaining at home; for as in her who should conceive in the house of her husband, is understood natural conception; so in her who conceives before she be taken to her husband, there is suspicion of infidelity.