After a series of blundered second chances, Thea Clayhill (Lindsay Lohan) is finally faced with the sack at the hand of her boss when he over hears what she really thinks of him one day. But quick thinking Thea comes up with the ultimate game plan. She tells him she is 4 months pregnant. The only problem is, now she has to play along with it...for the next 5 months! As Thea's 'bulge' grows, so do her lies as she becomes embroiled in a series of hilarious cover ups to friends and work colleagues. Romance blossoms and her popularity soars, but how can Thea eventually come clean about her facade without losing everything and everyone around her?