Baby Mama (2008)

Successful and single businesswoman Kate Holbrook has long put her career ahead of a personal life. Now 37, she's determined to have a kid of her own until she discovers she has no chance of getting pregnant. Undaunted, Kate allows working girl Angie to become her unlikely surrogate. But her well organised strategy is turned upside down when her Baby Mama shows up at her doorstep with no place to live.

Official website: http://www.babymamamovie.net/