Luke.2.5

He went with Mary, his fianc�, who was pregnant.

Luke.2.5

He went there to register with Mary, who was pledged to be married to him and was expecting a child.

Luke.2.5

to be registered with Mary, his betrothed wife, who was with child.

Luke.2.5

He took with him Mary, his fiance, who was obviously pregnant by this time.