Pregnancy Safety Precautions

In addition to raw fish (including sushi and sashimi) and undercooked shellfish (oysters, clams, mussels, and scallops), it's a good idea to avoid seared fish during pregnancy, as it is more likely to contain parasites or bacteria than cooked fish. Also steer clear of those that contain high levels of mercury, like swordfish, shark, king mackerel, and tile fish, even when cooked. Mercury can make its way into the fetus and cause issues for your developing baby.

Source: Flickr User jonathan mcintosh