A wheelwright is  a craftsman who builds or repairs wooden wheels. The word is the combination of wheel and the archaic word wright, which comes from the Old English word wryhta, meaning a worker or maker.
It is advisable not to eat mercury-rich fish such as these during pregnancy.. Look out for fish that taste especially metallic, a sign of high mercury levels. Medium-mercury fish include Chilean sea bass, grouper, cod, Mahi Mahi, monkfish, and snapper. Low-mercury fish are the safest for pregnant women.
But the truth is that pregnant women can and should eat fish (with a few exceptions). It's true that not all fish is safe for pregnant women, but avoiding seafood can be detrimental too. Pregnant women should aim to eat eight to no more than 12 ounces of safe seafood a week. And, here's why. Fish is full of protein and iron. Pregnant women need at least 27 milligrams of iron a day (up from 18 milligrams pre-pregnancy) to help prevent anemia, and 71 grams of protein daily (up from 46 grams) to support the baby's growth and a woman's own physical changes.