While the American College of Obstetricians and Gynecologists recommends pregnant women to reduce their caffeine intake to as little as possible (lower than 200 mg or 2 cups per day), Dr. John Foxe, PhD, director, Del Monte Institute for Neuroscience, University of Rochester, recommends going decaf and trying to eliminate caffeine altogether.This also depends on the side effects of going cold turkey and cutting out caffeine altogether, as it could cause withdrawal, irritability, stress and anxiety and they can have effects on a pregnancy. Although pregnant women have been advised to limit their caffeine intake in order to reduce their risk of miscarriage or preterm birth for many years, a new study suggests that pregnant women who consume any coffee during pregnancy may be more likely to have children who develop behavioral problems later in life.Brain scans of children whose mothers drank caffeine while pregnant revealed abnormalities in circuits that could lead to behavioral disorders later in life, such as attention difficulty and hyperactivity, according to the researchers.