8 months on do I return??

Hi all,My name is Sharon,Im 24 and I tore my ACL last August 08 playing camogie. I had my surgery in October 08 and have been advised by surgeon to return to sport but I am still very wary. Has anyone re injured their knee by going back playin sport?This is my biggest fear because as you know it is a horrible experience and dont want it to happen again. I am very happy with my knee at present, swells a bit but I think it always will. I can run now pain free only problem is now building up hamstring a bit more as it is still quiet weak. Anyway advise would be grately appreciated,