[targonrotts]

there can be a retained placenta, a retained puppy or a infection that can range from a small treatable with antibiotics to a large infection with possible damage to uterus which can result in an emergency spay.
i would get a second vet opinion, ask for bloodwork and xrays.
bottle feed the pups every 3-4 hours and when they turn about 25 days of age, start weaning them to mashed potato consistency puppy food. i usually soak dry puppy food in warm water or puppy milk until soft then mash it up and feed 4-5 times a day in shallow plates. introduce water too at that time in shallow plates.
pups should also be looked at soon to get first deworming.

normally after having puppies a bitch can have discharge thicker than her heat for anywhere from 3-8 weeks after having pups. it should not smell bad or have a fever with it. fever,not eating,lethargy and pus like discharge should be seen asap.

let us know how it turns out.