Dakota Johnson is putting pregnancy rumors to rest. The actress spoke out on yesterday’s episode of The Ellen DeGeneres Show following reports she's expecting with her boyfriend, Coldplay singer Chris Martin. "The only thing I'm pregnant with is a lot of really good ideas. But not any babies," she told Ellen. The star explained she was celebrating her birthday when paparazzi misinterpreted the decorations -- pink and blue balloons -- as a gender reveal party. "It was my birthday and there were balloons that happened to be pink and blue. So then I was pregnant?" Johnson said. "I didn't know the balloons were going to be released. They were just in an arch and I guess that accidentally happened -- one of the ends just got let go," she added.