The Back-up Plan (2010)

Zoe's a woman who has a hard time letting anyone into her life. She has a habit of pushing people away when they get close. She also wants to have a baby but because she has no man in her life decides to be artificially inseminated. Shortly after having the procedure she meets a guy named Stan whom she connects with. But she's still afraid to let him in and when she tells him about her pregnancy thinking he would bail but he sticks with her.