The virgin birth is not a lesson in asceticism nor does it belong directly to the doctrine of Jesus’ Sonship; it is first and last theology of grace, a proclamation of how salvation comes to us: in the simplicity of acceptance, as the voluntary gift of the love that redeems the world."Yes."
The question isn't about the virgin birth. The question is about original sin. Did Mary have original sin? Did God keep Mary from sinning, negating her "free will"? If God did it for Mary, why doesn't He do it for everyone?