The controversial parents - who have not been named to protect their identities - are said to be 'totally in love'.
They'd been a couple for more than a year before she fell pregnant and are believed to be Britain's youngest parents.
Despite fears that becoming a mum would harm her education, the girl, who is now 13, is doing well at school, regularly scoring top grades.
The girl's mother, who is only 28, looks after the child.
The parents of the one-year-old baby have the lowest combined age of any British parents on record.
While teen prengnacy rates are falling in the UK, we still lag behind most of Europe in our efforts to reduce teenage pregnancy.
What do you think about teen pregnancy? Can teens make it work or should they wait to have children later in life?