Let me xplain dis to ya.
While I do not believe God is involved in everything that happens on Earth and to each individual person, but if this is a part of one's religious belief, as it is with this guy, then the following is what he meant:
He is saying that if a child is conceived in a rape situation, it is because that conception is the will of God.
The rape is an act of man but the conception is an act of God.
A person has the right to act in conjunction with God's will but it is not required.