This will be the second child for Howard, 30, and her husband, United States of Tara actor Seth Gabel. They have a four-year-old son named Theo.
Howard, who is the daughter of director Ron Howard, has been open about her struggle with postpartum depression with her first child. She said that Brooke Shields' book, Down Came the Rain, was a "revelation" to her during this tough time.
"I felt I was failing at breast feeding. My house was a mess. I believed I was a terrible dog owner. I was certain I was an awful actress," she said.
She also had a tough time with her weight gain and her new mom body. "Before Theo was born, I had been in good humor about my 80-pound weight gain, but I was now mortified by it," she said.
The actress said she got professional treatment and started working again -- and felt a "critical shift occurred."
"One day I was sitting in my home with my best friend and sister and out of nowhere I got this sudden feeling of summer. I searched for a better way to describe my feelings, 'I dunno, I just got this feeling... like everything is going to be okay.' My depression was lifting."
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