Is it best to pull out a loose tooth or let it fall out on its own?

Either way: At your age, unless there is a very late eruption of an adult tooth, you shouldn't have a loose tooth. Were you injured? Was there a lot of pain indicating an infection? If you do not know the circumstances, you might have a dentist take a look at it in part because perhaps you might have a tooth that can be saved.

See dentist: Talk to your parents about scheduling an appointment to, have your dentist evaluate this. If this is a retained baby tooth , it may come out by itself and the concern would be the permanent tooth and it's eruption.