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 in the US on April 23, 2010. The Back-Up Plan (previously known as "Plan B") is an upcoming romantic comedy film, starring Jennifer Lopez and Alex O'Loughlin.

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. The unmarried Zoe (Jennifer Lopez) is artificially inseminated with the sperm of her male best friend. Newly pregnant, but not yet showing and still unaware, she meets Stan (Alex O'Loughlin), and the two start dating. Romantic complications ensue once she reveals to him she was pregnant when they met. Zoe eventually suffers a miscarriage when Stan pushes her down a flight of stairs to avoid raising her fatherless child.

Looking stunning at Showest in Las Vegas, Jennifer says "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."

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.

The Back-Up Plan Movie Trailer

The Back-Up Plan Cast: Jennifer Lopez, Alex O'Loughlin, Michaela Watkins, Noureen DeWulf, Melissa McCarthy, Danneel Harris

The Back-Up Plan movie trailer courtesy CBS Films. The Back-Up Plan opens in US theaters April 16th, 2010. The Back-Up Plan is directed by Alan Poul.

It is a great movie! Alex and Jennifer fans will enjoy it.. :)