Avoid Alcohol and Recreational Drugs. Alcohol is found in many drinks including beer, wine, wine coolers and liquor. Alcohol and drugs that are ingested while pregnant will also be ingested by the growing fetus. They can cause severe birth defects, mental retardation, stillbirth, preterm delivery, low birth weight and newborn addiction to the substance at delivery. It isn’t known if there is a safe level of alcohol, therefore, the safest choice is not to drink alcohol during pregnancy. If you need help with an addiction to alcohol or any types of non-prescription or prescription drugs, please talk with us.