Priceless...........in one breath you attempt to quote JEWISH law in relation to a binding marriage contract.......then in the next you self contradict your logical fallacy...."SAME RULES APPLIED as if the couple were married". But.....you did not mention that the scriptures state, an angel of the Lord appeared unto Joseph and called Mary his wife, ".........fear not to take unto thee Mary thy WIFE...." -- Matt. 1:20 Again.......where does it state that the parents were "suspicious" and concerned about Mary's condition? Truth: Marry and Joseph were instructed to hide the pregnancy via an Angel of the Lord in order to avoid.........GOSSIPING.
The birth of our savior the Lord Jesus Christ was not a natural event were natural laws or the laws of men apply..........the birth of the Christ of prophecy (Jesus) was a supernatural event. Being such........would God allow gossip and suspicion to interfere?
The scriptures are quite clear...........Joseph did marry Marry and did not know her (have sex with her) until after the birth of Jesus...then Joseph and Mary had other children which were the physical siblings of the Christ. (Matt. 1:24-25) How do you know the couple had other children? "...............and (Joseph) did not know her (have sex) till she had brought forth her FIRSTBORN (Jesus) Son."
Joseph and Mary were indeed married in every since of the word with the exception they obeyed the angel of the Lord and did not engage in sex until after their first born (Jesus).