What are the things to avoid during pregnancy besides sex?

Alcohol, tobacco, & Fish with high mercury levels such as swordfish, tuna, tilefish, mackerel, bluefish, shark, grouper in fact those highup on food chain who have eaten other fish and retained their mercury.( shrimp, scallops, clams + salmon are safe) xs liver consuption may be bad from vitamin a toxicity as well as xs tofu (fine in moderate amounts) may have a slight feminizing effect on baby boys' genitalia.