Was Mary a Virgin When She Conceived Jesus?
Frankly, no one can prove Jesus was born of a virgin. Neither can anyone disprove it. Basic human biology and common sense dictates a virgin cannot naturally conceive – conception would require a miracle.
Believing whether Mary was a virgin who miraculously conceived Jesus, if not by faith, boils down to a circumstantial case. Such a scenario requires a conclusion based on the circumstantial evidence.
Jewish marriage was a two-stage process; first the betrothal typically lasting for 12 months, then the wedding to consummate the marriage. Once the proposal was offered to the prospective bride’s father, the finalized details were formally sealed in a binding contract.
Ketubah was a legal marriage contract enacted during the reign of Queen Salome (76-67 BC) and formalized by the Sanhedrin long before Joseph or Mary were ever born. A ketubah was the law of the land.
Family intermediaries vetted the couple’s families, backgrounds and defined the terms of the ketubah, two of whom would eventually sign it as witnesses. Financial details were negotiated including the bride price, the dowry, and any contributions from both families. Monetary values for virgins and non-virgins were predefined by the Sanhedrin.
For the bride, the ketubah provided a trust fund in the event of the husband’s death or a divorce excepting for the disqualifying factor of adultery. For the groom, the ketubah factually and legally established his betrothal was a virgin. The contract found in the Jewish Encyclopedia twice makes specific reference to her virginity:
…“We have followed the legal formality of symbolical delivery [“ḳinyan”] between _____ son of ______ , the bridegroom, and ______ daughter of ______ , this virgin, and have employed an instrument legally fit for the purpose to strengthen all that is stated above, and everything is valid and established.
During Mary’s betrothal, the Archangel Gabriel announced she would bear a son conceived by the Holy Spirit to which Mary replied, “How can this be, since I am a virgin?” By her own account, Mary was a virgin at this point.
Gabriel informed Mary her cousin Elizabeth was also 6 months pregnant. Excited by this news, she “went in a hurry to the hill country, to a city of Judah” to visit Elizabeth – Mary left almost immediately.
From Nazareth to Elizabeth’s home, the trip would have taken 3 to 7 days depending on the town’s exact location near Jerusalem. At the moment of hearing Mary’s voice, the babe in Elizabeth’s womb, who would become John the Baptist, leapt with joy. Elizabeth also already knew that Mary was with child.
In the very short span of about a week, Mary became pregnant. No human could have known she was pregnant at that point, not even Mary herself were it not for Gabriel’s message and Elizabeth’s exclamation. Today’s modern medical pregnancy tests are effective, at the earliest, 10 days after conception and most reliably not until after 3 weeks. At best, a medical blood test can detect pregnancy in as early as 6 days.
Joseph can be ruled out as the father based on his own reaction to divorce Mary when he unexpectedly learned months later she was pregnant. The possibility that Mary had a secret paramour is a realistic possibility if one does not accept Matthew’s account at face value.
Before reaching a point in her mind to cheat on Joseph, Mary would have to overcome immense hurdles – mentally, spiritually, psychologically, emotionally, and fear. It would be most challenging for a sheltered girl in her early teens still living at home with her parents.
Mentally, Gabriel’s visit had to be a most impactful, unforgettable experience. Mary was told of her future son, “He will be great and will be called the Son of the Most High; and the Lord God will give Him the throne of His father David.”  Mary then made a commitment to Gabriel and God saying, “Let it be to me according to your word.” Spiritually, to then lose her virginity would be breaking her commitment to Gabriel and God.
Psychologically and emotionally, infidelity would mean betrayal. Mary would have to be willing to betray her own reputation, family, friends, and Joseph bringing them all great shame and disgrace.
Foreboding fear of serious consequences for adultery would be a huge deterrent. Forfeiture of her future financial security was at-risk by breaking the terms of her ketubah contract. Perhaps the greatest deterrent of all was the fear of death by stoning.
Physically she would have to circumvent several traditional safeguards. Betrothed girls subject to Judaic Law were under strict supervision of family and the watchful eye of the community. Unmarried girls were not allowed to be alone at any time with an adult male, not even a family member. While preparing for her spur-of-the-moment trip, Mary would have had to slip away from these guardians of virtue.
If Mary didn’t have a tryst before leaving Nazareth, the only opportunity would be on the journey to visit Elizabeth. Mary would have been required to travel in a caravan with a family-chosen chaperone and her secret paramour would have had to be traveling, too. They would have had to find an opportunity to safely slip away without being caught.
One other factor closes the short period of time for Mary’s conception after Gabriel’s announcement. It was Elizabeth’s own words, “Blessed are you among women, and blessed is the fruit of your womb!” Would an illegitimate pregnancy have been divinely revealed to Elizabeth who exclaimed that Mary’ and her baby were blessed?
How likely is it that Mary became pregnant by another man – or was she a virgin?
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