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.
Pregnant women can eat shellfish as long as it is cooked. They should not eat the organs or guts of fish or shellfish. Pregnant women may eat up to 12 ounces a week of crawfish, squid, oysters, clams, shrimp, or scallops.