You shouldn't reach out for the puppy as soon as it whimpers. This is rewarding the puppy for attention seeking which in later life will turn to asking for attention through barking. Make sure the puppy is in a small crate and has a soft blanket and something to snuggle with in its crate. You could also put in a ticking clock to help soothe and settle the pup. When the puppy is quiet , than that is the time to go to the pup and praise it gently. Learning in puppies is shaped majorly by their environment so it is better to use conditional training from day dot when you get your puppy to avoid problems of unwanted behaviour in later life.