This is probably not the worst pregnancy book in the universe, but it is the worst one I've ever read. Unfortunately it's also the most popular, no doubt due to its admittedly catchy title and unavoidable ubiquity. I'm sure that many, many women, like me, zipped off to the library and grabbed this first thing after their positive pregnancy test.
I had zero ambivalence about being pregnant, but I imagine that for other thinking women less sure they want a baby, this book could do a lot to make them decide that in fact they might not. A lot of people have complained about its alarmist tone and cataloguing of things that can go wrong, but I don't particularly remember that; what I hated was its insultingly cutesy-but-hideously-uncute, grating, idiotic style. The entire book is written in peppy, spunky awful-puns-that-aren't-even-really-puns and moronic-jokes-that-aren't-actually-jokes. These aren't real examples, because I don't have the book, but seriously the whole thing is like, "Being pregnant is a gas! And you'll have gas the whole time your little bun is in the oven... Speaking of buns, you may want to indulge your cravings for sticky buns, but be careful or your buns will get fat and no one wants that! Teeheehee!" I mean, obviously that is not a direct quotation, but in essence it really is not so far off. I hate this book because it makes pregnancy seem stupid, and seems to imply that being pregnant is going to make you stupid. If this is something you're already kind of worried about, What to Expect can be a highly distressing read. I found its tone so nauseating and awful that it made me slightly less excited about being pregnant for awhile. It really made the whole thing seem like a lame project for stupid, infantilized women, and something I didn't want to be a part of at all despite really wanting a baby.
To be fair, I have a hard time with a lot of accepted pregnancy book conventions, beyond just this book. Use of the word "baby" with no article rankles me, and referring to a six-week-old embryo as a baby (or, infinitely worse, just as "baby") completely skeezes me out. A lot of this is due to a lifetime of programming and conviction about reproductive rights, but it's also because I'm aware that there are high rates of miscarriage in the first trimester. Of course it's a personal choice when you decide to think of your fetus as having personhood, but it seems irresponsible to me the way all these books start personifying and burbling on about an adorable bundle of joy so early on in the process... But of course, that's just me.
I'm not made of stone and I was incredibly emotional and excited about being pregnant, but I found the discourse of these books really alienating, and this one was the worst. A lot of people seem to love it, but if you're like me you'd do better off with something else. Honestly, I didn't ever find a pregnancy book I loved (childbirth yes; pregnancy, no) and wound up getting most of my intel from the BabyCenter website, which isn't perfect but is decent and has an infinitely more tolerable tone.