Just think of the fact that Jesus was to be descended from the line of David. There may be reasons we have no clue about yet as to why it was part of the plan.
The idea of a woman's "seed" was hardly to be thought of in a Bronze Age culture, when a female was seen as a "field" in which a seed was planted, but not as contributing "seed" of her own. In point of fact, I believe the first undisputed observation of the human ovum was made in the 1820's. But way back in Genesis, you had this reference to the "seed" of a woman. The person is to come by the woman, and by her alone, without the concurrence of man. So this is not addressed to Adam and Eve, but to Eve alone; and then, so many generations later, Jesus Christ was born of a virgin. The genetic beginning of the savior who would "crush the serpent's head."
Mysterious. Interesting.
If I’m reading it correctly it was Joseph who was descended from the line of David. As this was patrilineal, why would any of that matter to a virgin birth?