Imported soft cheeses may contain bacteria called Listeria, which can cause miscarriage. Listeria has the ability to cross the placenta and may infect the baby leading to infection or blood poisoning, which can be life-threatening. You would need to avoid soft cheeses such as: Brie, Camembert, Roquefort, Feta, Gorgonzola and Mexican style cheeses that include queso blanco and queso fresco, unless they clearly state that they are made from pasteurized milk. All soft non-imported cheeses made with pasteurized milk are safe to eat.
Information courtesy of the American Pregnancy Association