Accidentally on Purpose

1. S01E01PilotSeptember 21, 2009 5.5Billie becomes pregnant after a brief fling with Zack, and she asks him to temporarily move in with him because he has no place to stay.
2. S01E02MementoSeptember 28, 2009—When her boss raises the question of who Zack really is, it prompts Billie to go on a fact-finding mission as to the true identity of her ba
3. S01E03One Night StandOctober 5, 2009—Billie's pregnancy creates an attraction from members of the opposite sex, while Billie feels her own results of her hormonal changes, but s
4. S01E04The DateOctober 12, 2009—Billie declares that she and Zack are able to see other people, but it's Billie who finds the dating scene a little rougher than expected, a
5. S01E05The Love GuruOctober 19, 2009—Billie tries to live vicariously through Zack and Davis by offering up dating advice to them. However, things take a turn, when the objects
6. S01E06Fight ClubNovember 2, 2009—Billie and Zack have their first big argument after Zack tries to surprise Billie by installing a low flow toilet.
7. S01E07The GodfatherNovember 9, 2009—Billie unintentionally causes Abby and Nick to break up when she asks them to be Godparents. However, after a fun night on the town with Dav
8. S01E08The Third ManNovember 16, 2009—When Billie starts dating a colleague from her newspaper, Zack is unable to hide his jealousy.
9. S01E09Working GirlNovember 23, 2009—Billie is threatened when James hires another film critic at the paper and sets out to prove how valuable she is.
10. S01E10ClassDecember 7, 2009—When Billie and Zack take instructional parenting classes separately due to their schedules, Billie goes with Olivia and Abby. However, the
11. S01E11It Happened One ChristmasDecember 14, 2009—Worried that she'll ruin Christmas - as she has in previous years - Billie tries to hide from her parents the fact that Zack is living with
12. S01E12The Odd CouplesJanuary 11, 2010—Abby and Nick have their respective significant others spend time with Billie and Zack to prevent them from finding out about the surprise s
13. S01E13The RockJanuary 18, 2010—While everyone feels the pressure of corporate cutbacks, Billie feels like she has to write the story of her life for a cover story and Zack
14. S01E14Attack of the 50 Foot WomanFebruary 1, 2010—Not wanting to sound like a nag, Billie manipulates Zack into doing chores around the apartment; however, her plan backfires when Zack takes
15. S01E15Back to SchoolFebruary 8, 2010—Billie invites herself to Zack's high school reunion but worries that she can't compete with his hot, ex-girlfriend in her pregnant state. M
16. S01E16Face OffApril 7, 2010—Zack is upset when Billie hires a baby nurse without consulting him. Meanwhile, Davis and Ryan are faced with a difficult choice when they l
17. S01E17SpeedApril 14, 2010—Billie pretends to go into labor to save Zack from getting a traffic ticket after they're pulled over for speeding. Meanwhile, Olivia and Da
18. S01E18Speed 2April 21, 2010—After faking labor pains to get Zack out of a speeding ticket, Billie goes into labor - for real. Unfortunately, things take a turn when Zac

Season 1 ranked & reviewed