He suffered five cardiac arrests, and his parents were told on several occasions he would not have the strength to come through the health problems he faced.
But Benjamin's remarkable fight for survival has gone better than could ever have been expected and now the tiny tot will be one on 15th of April.
Little Benjamin now weighs in at about 13lbs. His proud mum Taniya, 36, from Buckley, said she admits "miracles do happen". See a photo of Benjamin below when he was born.
