Jennifer Lopez Goes Single in 'Back-Up Plan'

Jennifer Lopez gives major props to single moms, especially after playing one in her new romantic comedy, "The Back-Up Plan," opening in theaters April 23.

Jennifer Lopez

Looking stunning at Showest in Las Vegas, Jennifer tells "Extra," "I have a lot of respect for single moms. When you have a partner, it's still so challenging. I mean joyful and amazing, but challenging. So to do it all on your own is tough."

In the film, she plays a career woman who really wants to be a mom. "So she decides to have a baby on her own, and then, of course, as fate would have it, she meets somebody," the actress explains. That "somebody" is played by "Moonlight's" Alex O'Laughlin.

See photos of Jennifer Lopez through the years!

Lopez is now juggling work with motherhood as well. "The Back-Up Plan" is the first movie she's done since having her twins, Max and Emme, in 2008.

But she gets a little help from her hubby Marc Anthony. "Marc is great, and he helps out a lot, but you know... it's Mommy.