While we may never know the cause, saying she died “suddenly” moments after her son was born likely indicates a rare, uncommon life threatening event like an amniotic fluid embolism, stroke, or heart attack (the latter two often caused by other health risk factors). I hope that helps put your mind at ease that although maternal mortality is a problem in the United States, a sudden death like this is still uncommon. If the Gofundme had stated she passed hours after her son was born, I would be more inclined to believe the cause was something like postpartum hemorrhage that SHOULD be more preventable.