Thousands of women a year are giving birth after admitting having drunk too much alcohol during their pregnancies, a Sky News investigation has found. Although government guidelines warn pregnant women against drinking more than four units a week - equivalent to two large glasses of wine - hospitals have recorded a significant number drinking much more. The first hospital figures of their kind suggest that more than 2,000 babies a year are born to mothers who have breached alcohol guidelines. Dr Raja Mukherjee, lead clinician for the national foetal alcohol spectrum disorder clinic in Surrey said ‘We know that women are drinking more. 90% of women in this country drink and they don't all suddenly stop when they are pregnant.’ Heavy drinking during pregnancy increases the risk that babies will be born with foetal alcohol syndrome - a life-long condition that can leave children physically and mentally disabled.