Pugs are very sensitive dogs. Before any decision is made, please do some research. My son and his wife have one they got as a pup (now an eight year old) named Rocky. Rocky from the very beginning would eat to fast and had to be watched carefully as to how much he was putting in his mouth at a time. They nicknamed him Hoover and you can imagine how he got that because he loves to eat. One time he had to be rushed to the vet late in the evening because he choked on a doggy treat that most dogs would be okay with. He was crate trained and stayed in the crate with his favorite blanket, toy and bowl of water while they both worked until they were able to work opposite shifts to have someone home with him. Now he seldom uses the crate.
Now Rocky is a diabetic and needs insulin twice a day, another pricey expense to go with his special diet. He also has pancreatic cancer which could be why he's diabetic. Anyways now he has vision problems and sometimes coughing spells and breathing issues. It's only a matter of time before they fear they'll have to have him put down. This dog has been just like a child to them. He is very much loved. And their six month old son may never have a chance to enjoy him.
Think about it. Know what you may be getting into first before getting a pug. See if your parents or guardians agree to be there to help.