We tragically lost our 3rd baby due to heart condition and encephaly at 13 weeks i was gutted and had a d and e 2 days ago the hospital have agreed to cremate him and let us havr him back we were talking about planting a tree for him in the garden. And my son has over heard us and is now asking who charlie is and im not sure where to start?!!! He is 4 and has asd and is very smart im not sure what to say help!