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.
So when youâre pregnant, aim to eat two portions of fish each week, one of which is oily. Some types of fish such as shark, marlin and swordfish (and to a lesser degree tuna) can contain levels of mercury that are too high for your unborn baby. So during pregnancy, you should note the following: