Hi and welcome to YT. Would love to meet your new baby boy. Seems he should have stayed with his mom for at least 4 more weeks though. Anyway, Yorkies come in different sizes, but there are no "miniature", tea cup and the like. The Yorkie standard would be around 7 pounds fully grown. Hard to say how much a young puppy will weigh when it's grown. I have four, and none are the size that was predicted.
