Sushi while pregnant?!

Okay, I'm not big on seafood, the only sushi I eat is crabmeat sushi. Can you eat that while pregnant? Technically crab meat is "cooked" right? ... because you have to steam it to kill it?! So if all I'm eatting is a crab and cream cheese roll is that bad for the baby? 
No rude comments, first time mommy!