Ronaldo first became a dad when Cristiano Jr was born in 2010, before welcoming twins Mateo and Eva by a surrogate mother in June 2017.
Then, in July, Ronaldo confirmed that his girlfriend Georgina Rodriguez is expecting to give birth to the couple's first child, a girl named Alana Martina, in November.
And the 32-year-old feels as though having children has had a profound impact on how he looks at the world, calling family life his "greatest privilege".
"Fatherhood has taught me things of love that I never knew existed," Ronaldo told ¡Hola!
"It has softened me up and given me a new perspective on what really matters in life.
"Seeing my family grow is, honestly, the greatest privilege I have had. I enjoy every second."