A new study suggests light alcohol consumption during the first trimester is linked to a higher risk of bearing a preterm or unexpectedly small baby, even if expectant mothers keep within the government-recommended limit of two units a week.In addition, say researchers at the University of Leeds in the UK, who report their findings in the BMJ's Journal of Epidemiology and Community Health, drinking alcohol in the weeks leading up to conception is also linked to smaller fetal growth.

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