You have to check local laws to see if your area is zoned for keeping agricultural animals as pets. The name teacup is misleading because when full-grown, they can weigh 40 lbs. and up. You can't fit that in a teacup. You also will find vet bills higher than for a dog or cat. Pigs make great pets but need lots of time and attention so be sure you're willing to take on the commitment necessary.