It happened, when the angels went away from them into the sky, that the shepherds said one to another, "Let's go to Bethlehem, now, and see this thing that has happened, which the Lord has made known to us."
She had a son; she had to go through forty days of purification. If she had a daughter, she would have gone through eighty days of purification. Sort of a punishment for having a girl. Forty days of purification were accomplished.