In our country there's a lot of old maid saying or myths during pregnancy. One of these are:

* eating crabs during pregnancy will give the fetus a deformity akin to that of crustacean.
*Eating a twin banana during pregnancy will cause you to have twins.

yeah, there are so many. :-) in addition to that, step over your husband and he will be doing the first few months of your pregnancy. morning sickness, craving for unusual foods to eat, I think there is also a time that the husband becoming more sensitive in that case. Flatulence our Filipinos superstition, very common we truly believe that every pregnant woman is having strong flatulence and before leaving or the pregnant should leave, it needs to have a  cross-signing on the forehead of the person who caught their attention.  Sharing of foods with a pregnant can cause your drowsiness.  Our ancestor's old sayings.

I avoided sushi which was sad because I love sushi, and I'm sure its fine as long as you get it from a decent place. I didn't each much shellfish. I made sure to eat healthy foods and take my folic acid and calcium.

When I was pregnant, I ate a lot of healthy foods too. I avoid lifting and carrying heavy objects and always gone early to bed to have enough sleep. I am very careful with what I am doing to avoid any accident to happen, just to make sure that I and my baby are safe. 
And follow the doctor's advice, for a healthy pregnancy and for the safe delivery soon. :)