Hey Limeslice... since you mentioned the common aussie use of 'flake'... i have been wondering, since flake is shark (to my knowledge) that makes it a no no?



No sorry I meant that Hoki in NZ is like Flake is here - the standard basic fish used in most fish and chip shops and pubs - the "default" white fish if you like. Hoki and Flake are not the same fish, just used in similar ways in their respective countries.
You CAN eat shark during pregnancy, just need to limit the intake of mercury fish - dark or oily fish. So you can eat flake once a week without any issues if you don't eat other fish.