Hayden Panettiere is opening up about navigating postpartum depression after the arrival of her daughter more than a decade ago. "I had it like all planned out in my head, and as the plans just collapsed, the postpartum came, and I was completely out of control, and suddenly I was this ... I was nowhere near the mom that I had sworn to myself that one day I was going to be and that was devastating," Panettiere, 36, said in the latest Us Weekly cover story, while promoting her new memoir, This Is Me: A Reckoning. She continued, "That was devastating. [It] was heartbreaking.