Elizabeth conceived John the Baptist on 17th of Tishri 3756. Gabriel, at the end of the conversation with Mary, said that Elizabeth current pregnancy was at 6 months of gestation.
And, behold, your cousin Elizabeth, she has also conceived a son in her old age: and this is the sixth month with her, who was called barren. (Luke 1: 36)
The chronology is as follow:
That Mary got pregnant on 17th of Nisan 3756 is also be known from Gabriel visit to Mary, informing that Elizabeth had also conceived.
Given Gabriel visited Mary on 17th of Nisan 3756, Mary got pregnant with Jesus Christ on 17th of Nisan 3756 as well.
17th of Nisan 3756 Hebrew Calendar falls on March 25th, 5 AD Julian Calendar.
|Hebrew Calendar||Julian Calendar
|17th of Nisan 3756||March 25th, 5 AD||March 23rd, 5 AD|
In conclusion, Mary got pregnant on 17th of Nisan 3756 Hebrew Calendar or March 25th, 5 AD Julian Calendar, at the time of Gabriel visit to her. “Mary and the angel” story is always an important part of any Christmas story. Without it we would never have Christmas on December 25.