Okay, here's what might help:
1. Avoid crises.
2. Agree that change is a part of living.
3. Move toward your goals.
4. Keep everything postive.
Economic influences I believe
Some types of fish and shellfish contain healthy omega oils that will help the development of the fetus's nervous system. However, some contain toxins and possibly viruses (oysters, for example) and must be avoided during pregnancy.
Let's say you enjoy swimming. One day you decide to swim alone. But it's a risky idea because you could drown and no one would be there to help you in time. So it's best to have others around incase you have an accident or need help.