Question: is there a such thing as teacup pigs

Answer: No, A miniature pig (also mini pig) is a class of pig developed and used for medical research or as a pet. Miniature pigs weigh between 22.5 kilograms (50 lb) and over 68 kilograms (150 lb) when fully grown. 'Mini pig' has become an acceptable, if imprecise, term that is used to distinguish the difference between large pigs and smaller breeds such as Juliana pigs, Pot-bellied pigs, Choctaw Hog, Kunekune (and specimens derived by cross breeding with these). There are no breeds called teacup, micro, micro mini. These are all adjectives and not breeds of pigs.