Luke 2:4-6

4 So Yosef, because he was a descendant of David, went up from the town of Natzeret in the Galil to the town of David, called Beit-Lechem, in Y'hudah,

5 to be registered, with Miryam, to whom he was engaged, and who was pregnant.

6 While they were there, the time came for her to give birth;