If you've had a puppy before, you probably know that's where the real fun begins (ironically...actually at the point when you may find yourself having a hard time sleeping the first night your pup is home). Remember that while you've been waiting a long time for your puppy to arrive, it may take a while for your new puppy to adjust to their new home as he is missing his littermate and mom for the first time. If possible, it's best to schedule a time when you can stay at home for a few days to allow the puppy to adjust to the new environment. In addition to the visit recommended by your local veterinarian, the goal of the first week is to get the puppy acclimated to his new home and establish as much of a routine as possible around feeding times, potty breaks, and more.
Ideally, you can take a few days or a week off to settle your puppy. Once you've introduced your puppy and settled him into his new home, you can begin kennel training, house training, and a feeding schedule.
When you get home, and BEFORE you bring your new puppy into the house, immediately take him to a little exercise pen outside where you want him to learn to eliminate. Let him blow off a little steam and run around the pen to familiarize himself with the area and to help avoid accidents when he first gets home. I always recommend letting him out at the top of the hour every hour when you are home and then give him 10-15 minutes of undivided attention on the floor just afterward. When you cannot give the new puppy undivided attention, be sure to keep him restrained whether in his kennel, in a playpen, in his bed, or on the couch with you. This will help avoid most accidents and teach him that his pen outside is the best place to go. This will keep him safe and encourage him to avoid accidents in your home.
Just remember to exercise patience since a new puppy is more likely to push boundaries and chew on things he shouldn't be. Be understanding with chewing, barking, playing, and potty accidents in the house. Your pup will stay safe in your pup's fenced area, but he may sniff and "talk" to an adult dog as both animals become accustomed to each other. Give him a full 2 weeks to acclimate and understand your expectations and to get into his new life flow. Most of all, learn to enjoy this baby stage as time flies.