Now that you're eating for two, what goes in your mouth is very important. In addition to sushi, avoid any other raw seafood or meat — they carry parasites that are dangerous to your developing baby. Be careful with any fish (even the cooked kind!), because it can contain high levels of mercury. Also avoid alcohol, caffeine and soft cheeses like blue cheese, feta, and brie. Be wary of tap water, especially during your first trimester. And, try to keep junk food (empty calories, no vitamins and nutrients) to a minimum by opting for healthy alternatives.