No, a boy cannot get a girl pregnant if he hasn't hit puberty. This is because boys only begin to produce sperm, which is necessary for fertilization, once they enter puberty.
Puberty typically starts between ages 11 and 14 for boys, but this can vary. During puberty, boys experience significant physical changes, including the development of their reproductive organs and the production of sperm.
Therefore, a boy who hasn't reached puberty is not capable of impregnating a girl.
