Megan Fox Talks Motherhood, Her New Film 'This Is 40'

Megan Fox arrives at the March Of Dimes' Celebration Of Babies held at the Beverly Hills Hotel in Beverly Hills on December 7, 2012 -- Getty Images

Megan Fox gave birth to baby Noah in September, and the "This is 40" actress said it was a lot harder than she expected.

"I was screaming for an epidural when [Brian Austin Green] was driving me to the hospital because my water broke on its own and I was immediately -- it was level orange alert pain," Megan told Access Hollywood's Shaun Robinson on Monday at the "This Is 40" film junket.

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'"Cause it's scary," Megan's funny "This is 40" co-star Chris O'Dowd chimed in.

"It... can't be anything because it hurts so bad," Megan said. "It was so intense. And I thought I was gonna be really tough and make it, I was gonna labor to like 8 cm... but the first contraction that I got was horrific!"

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But she did try to look her best, despite the pain.

"I had wet hair so I was trying to blow dry my hair before I went to the hospital because I didn't want to go to the hospital with wet hair," she laughed.

Megan said parenthood is tough, but she has found a new level of happiness with her son.

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"It's exhausting, but it's amazing and you can't, until you have kids, you can't imagine how much you could possibly love a human being," she said. "It's really intense and really overwhelming and amazing.

"He's super cute," she added.

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"Yeah, I heard," Chris chimed in. "Of course, he's gorgeous... I don't know...

"I mean, I have an Xbox, I get it," he added, trying to relate to the joys of having a child.

"This is 40," starring Paul Rudd and Leslie Mann, opens on December 21 and Megan said the film, about Pete and Debbie, living life several years after "Knocked Up," is something many people should be able to relate to.

"I think anyone around that age could be dealing with any number of these things," she said. "It's a hard look at married life, single life, being 40. It's rough."

"It's the sexual equivalent of a cold bath," Chris said.

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