First, let me preface this by saying I am not suggesting anything that is 1) going to make you smarter or 2) has won awards or been on the NY Times best sellers list. It's a book I stumbled upon, before I had kids, and it was just a funny, light read. Also, it has to do with pregnancy, but you don't have to BE pregnant to laugh, though I think if you have been, you might find it even more amusing.
I lent it to my sister after she had her first baby and she told me she wished she had known about it when she was pregnant because it just made her laugh.
My last warning, i don't love the title, so try not to judge.
It's called "Diary of A Mad Mom-To-Be". It popped into my head again thinking about that evil book What To Expect which is kind of spoofed in it.