The Portuguese veteran, who was at Euro 2024 with his nation, plays for Al-Nassr.
Ronaldo has been away from European club football since he left Manchester United in the winter of 2022.
Ronaldo told NOW: "I don't know if I will retire soon, in two or three years... but probably I will retire here at Al-Nassr.
"I'm very happy at this club, I feel good in this country too. I'm happy to play in Saudi Arabia and I want to continue."
"When I leave the national team, I won't tell anyone in advance and it will be a very spontaneous decision on my part, but also a very well thought-out one," Ronaldo added.
"Right now what I want is to be able to help the national team in their upcoming matches. We have the Nations League ahead of us and I would really like to play.
"At the moment, I'm not thinking about being a coach of the first team or any team.
"It doesn't even cross my mind, I've never thought about it.
"I don't see my future going through that. I see myself doing other things outside of football, but only God knows what the future holds."
