"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," Panettiere said. "I feel like an 80-year-old woman trying to go down the stairs... [and] I know some things will never be the same again."
Panettiere and Klitschko, a Ukrainian professional boxer, announced their engagement in October 2013 after dating on and off since 2010. Panettiere has been spotted ring-side at a number of Klitschko's high-profile fights.