Erika Christensen Shows Off Her Big Baby Bump -- See the Pics!

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Erika Christensen’s baby bump is getting big!

The actress posted some stunning pics from her Hawaiian vacation on Tuesday, showing off her baby bump on an Earth Day hike.

“Dear planet Earth, Thank you for your endless beauty and natural adventures!” Christensen captioned the pic. “Thank you for your resilience in the face of our abuse. Many of us are trying to help protect you. Even just by picking up trash on a hike! Let's face it, every day is Earth Day. Love, Erika #everydayisearthday #kokohead.”

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The Confirmation star is expecting her first child with husband Cole Maness later this year, and opened up to ET about her pregnancy at the premiere of the HBO film last month.

“It's a really fun accessory,” she joked of her baby bump.

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The 33-year-old actress also talked about her changing body and maternity fitness routine as she entered her final trimester.

“I thought it was an automatic thing, you just lost control of your body, like, the pregnancy just took over,” she said with a laugh. “That didn't happen.”

“I was like, well, I'm not going to be running, that seems rude,” Christensen continued. “So, [I’m] keeping [fit by doing] elliptical and walking. I just felt like continuing my lifestyle."

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