Origen
Catena Aurea · Lukasevangelium 1
And it came to pass, that, as soon as the days of his ministration were accomplished, he departed to his own house. And after those days his wife Elisabeth conceived, and hid herself five months, saying, Thus hath the Lord dealt with me in the days wherein he looked on me, to take away my reproach among men.
And therefore he says, Five months, that is, until Mary should conceive, and her babe leaping with joy should prophesy.