Most birth defects begin in the early months of pregnancy. Do make sure that all the meat you eat is cooked well. Under-cooked pork can lead to toxoplasmosis . Other meat if not cooked thoroughly can cause food poisoning which can hurt your baby. Avoid shellfish as it is a leading cause of food poisoning.
Food poisoning can cause miscarriage.
Don't smoke cigarettes. Cigarette smoking has been linked to low weight babies. Don't drink more than 2 cups of coffee. Your baby may be at risk of birth defects. Caffeine is a drug.