Four cups of coffee a day seriously damage a woman’s chances of having a baby, research suggests. The effect is almost as bad as the problems in pregnancy caused by alcohol, smoking or being overweight, a fertility conference heard. Women drinking that much caffeine were 26 per cent less likely to have a baby — adding to evidence that it can harm fertility and the health of an unborn baby. Earlier this year, it was claimed that just two cups of coffee a day could double the risk of miscarriage. Coffee has also been found to increase the risk of...