Another thing is that you'd be as hungry as anything all the time. Eating is what you just can't stop. But you shouldn't control over it. you have to keep in mind that you are eating for two people at that time.
However, you should eat health and nutritious food only. You can consult with doctor about what to eat and what to avoid during your pregnancy.
During earlier days of your pregnancy, you might get very irritated and moody. Mood swings at these times might get worse than those from PMS and its all due to hormonal surges.