sugar's mom has made excellent points and i think it is also important to see the issue from the breeders side
with mine, i did not feel any pressure (rather i felt a connection

) and all were old enough to come to their forever homes when i made the decision and paid the deposit ... this is just me but i would never put a deposit on a very young or newborn pup or one that is not born yet because i want to see how they will look AND i want to know what their personalities are developing into
it is a hard decision, but i agree with the others - i think you will just KNOW when the right baby comes along....i think any second thoughts or wavering is a sign...JMO though