The Denmark defender's current deal expires at the end of the season.
He told Tipsbladet: "I think we are in a good situation and there is nothing that can change what I do in my daily life. Of course, you want to be clear about it and know what will happen. But it's not something that changes our mood during the day, or something we talk about."
Christensen doesn't know if Barcelona wants to extend.
"No, I have no feeling about it - not yet. I just prefer to focus on being part of the team and play as much as I can.
"I hope (stay), but for now I have to take things as they come. If there is anything to do, my agent will handle it. Of course I want to know what's going on, but I'd rather focus on what I can do. But I don't have a plan B."
