原聲由 Stephen Trask 作曲。
在經歷了多次的約會后，佐伊(詹妮弗·洛佩茲飾演)認為遇到一個合適的人要花太長時間了，而她自己又很想當上一名母親，于是她決定實行人工受精的計劃，但此時，她遇到了各方面非常適合自己的斯坦（艾歷克斯·奧洛林 飾演）。她該如何在懷孕的同時與斯坦戀愛呢？
如果你喜歡The Back-Up Plan的專輯《電影原聲 - The Back-Up Plan(Score)(剩女也瘋狂/后備計劃)》里的歌曲，可以把下面的歌曲連接發給你的朋友:
1.Daydream - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389433.html
2.The Back Up Plan - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389434.html
3.Now What? - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389435.html
4.That Guy - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389436.html
5.Show Me Your Cheese - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389437.html
6.Goodbye For Now - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389438.html
7.Another Penny Drops - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389439.html
8.Pregnancy Test - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389440.html
9.Community Garden - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389441.html
10.A Serious Question - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389442.html
11.Fire - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389443.html
12.First Kiss - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389444.html
13.Test Results - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389445.html
14.Shadybrook - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389446.html
15.Mirror, Mirror - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389447.html
16.Yummy, Yummy - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389448.html
17.Cheese Muse - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389449.html
18.Orgasm - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389450.html
19.Telling The Truth - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389451.html
20.Not Leaving Leaving - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389452.html
21.Dejected - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389453.html
22.Here We Go - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389454.html
23.Studies - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389455.html
24.Chicken In Your Hair - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389456.html
25.Pancake Prelude - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389457.html
26.Are You Still In There? - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389458.html
27.Wall of Strollers/Examination - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389459.html
28.Pictures of Mom - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389460.html
29.Just Go - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389461.html
30.I Wanted A Baby - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389462.html
31.Old Dogs-New Tricks - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389463.html
32.Baby Time - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389464.html
33.And Now, For The Exciting Conclusion Of - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389465.html
34.Proposal - The Back-Up Plan
http://www.guangchangzhuan.cn/ting/389466.html