Just get the cooked rolls
Women in Japan eat it every day, online I read the only reason they don't want you to have it is that you might be more sensitive to parasites, and if its not a good sushi place, bacteria, I ate sushi, my body, my choice. So I say its up to you.
I get the Reggae roll, it's cooked at my local sushi bar. Avacado, strawberry, mango, shrimp and soft crab(may be imitation because it's so cheap) I only get it when I'm craving it though.
Raw fish is not recommended during pregnancy. Try avocado sushi or other veggie sushi. Just tell whoever at the sushi place you are pregnant and what they recommend.
You can have cooked sushi :)
Never eat any thing raw while pregnant, us just really not worth it, seriously.
My favorite is the avocado & crab with spicy sauce on it. But i get it cooked, still good:)