
Hi when did you see the first bag, was that an hour ago? If so sounds unfortunately like a vets job. You know that they like to do this on a bank holiday.
Have you got someone else to go with you because many times that this has happened to me the car journey has brought on the bitch to have the pup so no matter which way it goes going to the vets is the best thing especially as it's been some time since you saw the original bag.
Are you able to help the bitch when she's having contractions and slowly move the bag? If you are worried about this I really would get in touch with your vets as your girl is precious and I know that everythings a worry for you too/
Hope all goes OK and I've got everything crossed.