NEW YORK. A cup of coffee a day during pregnancy probably won’t increase a woman’s risk of miscarriage or premature birth, The American College of Obstetricians and Gynecologists said yesterday.


Until recently, studies have had conflicting findings about the effect of moderate caffeine consumption on pregnancy complications.


“I think it’s time to comfortably say that it’s OK to have a cup of coffee during pregnancy,” said Dr. William Barth, the chair of the committee which reviewed the evidence.


The college’s Committee on Obstetric Practice said that 200 milligrams of caffeine a day, about the amount in a 12-ounce cup of coffee, doesn’t significantly contribute to miscarriages or premat-ure births. That also includes drinking about four 8-ounce cups of tea or more than five 12-ounce cans of soda a day, or eating six or seven dark chocolate bars.