Thanks for the response, this is my first time with puppies so I am lost. What exactly is 7 to 1 and how much does it cost from the vet per puppy to vaccinate.
The 7-in-1 or 5-in-1 are the most common vaccines you'll find from the feed store. They are a combination vaccine usually DHLPP-C which covers Distemper, Hepatitis, Leptospirosis, Parainfluenza, Parvovirus, Coronavirus and sometimes Adenovirus. I prefer the basic DHPP.
As for how much it will cost you, I can't say. Every clinic has their own prices and what you'll pay at a vet's office and what you'll pay at a feed store is very different, it just depends on which way you want to go. You might call around and see what places are charging.
If all the pups seem to be healthy and growing then I think you'll be safe picking up the feed store variety and beginning their vaccines and deworming at 6 weeks.