Do you mean raw?? Yeah, you shouldn't eat anything raw while pregnant (if this is what you mean)......The fact that you "got rid of it" doesn't reallt mean anything.....I would just stay away from anything raw in the future.....
I'm not sure what a raw oyster would do to a developing baby, but eating them raw can cause you to get sick. A friend of mine was in the hospital, I forgot what they called his illness, but it was because he ate raw oysters.