The Real Madrid star shared the news with an adorable photo taken at the Hospital Quiron Universal in Madrid, Spain.
The 32-year-old welcomed new baby girl Alana Martina and said he was “very happy” in the snap with Georgina and his oldest son Cristiano Jr.
She joins the family that recently welcomed twins Eva Maria and Mateo – who were born from a surrogate mother.
Ronaldo wrote: “Alana Martina is just born! Both Geo and Alana are doing great! We are all very happy!”
Ronaldo and his son both beam in the picture as they were green surgical gowns and matching hairnets.
Rodriguez, 22, was reportedly due to give birth around November 21 but went to hospital earlier today.
Spanish reports state the date was brought forward as Ronaldo was given time-off from his duties with Portugal’s international fixtures – and had no club matches.
Ronaldo and his girlfriend had revealed the name of Alana Martina earlier this year.
The footie star explained each of them choose one name – describing it as “beautiful”.
He said: “I chose the first name and Geo the second.”
Last week, the footie star spoke about being a dad as he launched his CR7 Junior Collection clothing line.
He said: ““It’s taught me things about love that I never knew existed.
“It has softened me and given me a different perspective on what is really important in my life.”
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