If there’s one thing I’m learning from the crop of evidence-based pregnancy books I’ve been perusing, it’s this: Pregnancy ought to involve a lot more complicated decision-making and less blind rule following. That’s because the stuff that gets touted as “must-do” or “can’t do” is often, in reality, just one way of interpreting a conflicting and correlation-heavy body of data. Usually there is more than one appropriate, evidence-based decision that you can make, depending on your personal beliefs, desires, and goals. At the Wall Street Journal, Emily Oster does a great job of writing about this, using taboo libations alcohol and coffee as the examples.