Dr. Jean Dodd's vaccine protocol has been adopted by the majority of vet schools and is a good one to follow:
W Jean Dodds Vaccine Protocol VACCINATION PROTOCOLS
Yorkies can have fatal reactions to the lepto vaccine. Most of us do not get the lepto vaccination. In fact, many breeders put a clause in their contract that lepto is not to be given.
More and more studies show that over vaccinating our pets does more harm that good, so "less is more" when it comes to vaccines.
Missouri seems to be an "odd" state for rabies requirements. Rather than being state law as it is in most states, it is determined by local animal control ordinances. You will have to check with your vet to see when Sadie will need her first rabies shot.
I know you've been told this before, but just to remind you again, Sadie will not be protected from deadly puppy diseases like parvo until she has had all her shots plus two weeks for full immunity. As the last set of shots should be given between 16-18 weeks, 20 weeks is a good estimate. Until then, no grooming salons, dog parks, don't walk her in common areas in neighborhoods or apartment complexes, don't let her down on the floor of your vet's office, etc.