
It's early days & although it doesn't sound good that she has none or very little milk - it may (fingers crossed) come in - over the next 24/36 hours.
Feed her a premium quality food, & don't forget to supplement your babies a little bit (but not too much, you want them to be satisfied but hungry enough to want to suckle your bitch)
If your vet is willing to give drugs to your bitch, that's good as not all vets are keen, but weather or not it works is questionable & only time will tell.
Wishing you good luck with your bitch & pups :)