Voice 2: Completely stopping smoking is the best method for preventing harm. But even if a pregnant woman just reduces the number of cigarettes she smokes, she can improve her baby's health a lot. A full pregnancy is nine months. The WHO says that smoking after the fourth month of pregnancy does the most damage to a baby. But if a mother stops smoking before her fourth month, her baby may not suffer any problems at all! One report said: “Women who stopped smoking during pregnancy gave birth to babies of similar birthweight to those who did not smoke.”
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