Hayden Panettiere And Fiance Wladimir Klitschko Debut Photos Of Their Daughter, Kaya Evdokia Klitschko, Over The Holidays [PHOTOS]

Nashville star Hayden Panettiere finally decided to show off her baby girl after giving birth a few weeks ago. MStars News previously reported that the actress and her fiance, Wladimir Klitschko, 38, welcomed their daughter Kaya Evdokia Klitschko into the world Tuesday, Dec. 9.

Hayden, 25, has also revealed that the happiest time in her life has also been one of the most miserable times

According to Page Six, Hayden claims she feels like an old woman.

"I'm limping around. I'm still trying to figure out what [pregnancy] has done to my body, how it's changed it. What's temporary and what's permanent," the 25-year-old said. "I feel like an 80-year-old woman trying to go down the stairs, you know, 'Please tell me this is temporary.' But I know some things will never be the same again."

During a chat with Hello! magazine, E! News revealed that Panettiere claims she gained a lot of weight and described how it was changing her 5-foot-2 body frame.

Panettiere revealed that she had gained 40 pounds and believed she was 145 pounds during the near-end of her pregnancy.

“And the worst part is that my feet are still Size 5 and they’re going, ‘What’s going on with all this weight?’ They’re about to snap from underneath me with the strain,” she says.

She adds, “I’m still quite muscular, so if you’re running around carrying 40 pounds of extra weight, you’re going to build extra muscle.”

Hayden and Wladimir got engaged in 2013 but haven't set a wedding date. Despite the weight gain from having a child, Hayden vows she will not be huge on her wedding day.

“I’ll tell you one thing for sure: I am not walking down the aisle 40 pounds heavier than usual in a wedding dress with a huge pregnancy belly stitched in,” she promised. “Not happening.”