Ronaldo, 32, set the target after his first child Christiano Ronaldo Junior said on a Chinese TV that he wants four more siblings.
A Portuguese website quoted Ronaldo saying, “He wants seven, the magic number, and I think that’s good.”
He added that he wants to “go slowly and enjoy the moment”.
The Real Madrid captain recently had a set of twins, Eva and Mateo by a surrogate.
It was recently announced that his girlfriend is already carrying his fourth child.
Should Ronaldo eventually have seven children, it will correspond to his jersey number.