The current advice from the National Institute for Health & Clinical Excellence is for pregnant women not to drink during the first 3 months and then no more than one or two units a week.
But according to a new study carried out by Bristol University, drinking just one glass of wine a week during pregnancy can significantly reduce a child's IQ. Our Health Correspondent Rebecca Broxton has been finding out the implications.
More top news
Dozens were left stranded in the mud last night as the mass exodus began from Glastonbury Festival.
The forecast with Luke Castiglione. Mild tonight. Dry and sunny tomorrow but turning unsettled later in the week.
Crowds wanting to enjoy the home comforts of a night indoors and a hot shower first have to escape the site first - here's a handy guide.