I think you will do fine with a puppy. The pros are you have a sweet cuddly puppy to greet you when you come home every day. The cons are it is harder to potty train them when you work. It is not impossible though and there are alot of people on here that work and have puppies. The costs are the highest the 1st year. You have puppy shots. Mine ran a little over 200 with a puppy package. Then you have spay or neutering. That ran me 110. You have flea meds and heartworm. Mine is $30 for flea meds for a 4 month supply and $13 for heartworm for a 6 month supply. I buy mine online to save money. After the 1st year you have annual visits and shots and wellness bloodwork sometimes. That runs me $200 a year. And you also have flea and heartworm preventatives. Its really not too bad with one dog. Good luck you wont regret getting a yorkie |