The best thing to do is just to take her up to the vet and let them do an xray. This will determine if there are any puppies left to deliver. If there is a possibility of more pups, you want to get her delivered as a week late in delivery doesn' bode well for the outcome of these babies. If they die in utero and she doesn't deliver them, she will become very ill from the puppies decomposing. Just run her up for an xray and give yourself some peace of mind.
Please let me know if I can help further in any way.
It could happen either way. More than likely she would deliver them, but it's not unusual for dogs to have to have c-sections because their bodys don't go into labor as they should. Good luck with your girl and please let me know how things turn out!