Did you know that you’re not supposed to smoke marijuana while pregnant? I didn’t. My wife didn’t. No one told us during any of our three pregnancies. Not that it was an issue; neither of us uses marijuana. Still, given its prevalence and acceptance in California in general and the Bay Area in particular, I’m surprised it wasn’t part of the classes we took and that my wife’s doctors never mentioned it. Sadly, we’re not the only ones who didn’t know.