This can be a result of many different factors including implantation bleeding, infection, cervical irritation, ectopic pregnancy or a threatened
miscarriage. Many women who have this light
bleeding go on to have normal pregnancies and healthy babies. About half of the women who experience some light bleeding will go on to have heavier bleeding that will ultimately result in miscarriage. Unfortunately there is no way to predict whether or not vaginal bleeding will progress to miscarriage.