Blackstock, who will be free to talk to other clubs in January about a free transfer in the summer, insists he is yet to hear from Forest and has no idea whether he will be plying his trade at the City Ground come next season.
"There has not been any movement. There have not been any talks. I don't know what I can say, I am here," he told the Nottingham Evening Post.
"We are in mid-December now, almost. January is almost here. But what can I do? I have a great rapport with the fans, I love being here. It is a great club to play for and I hope that continues. But I have not been offered a contract."
"I don't run the club. I do not control the finances here. I don't know what the club have planned. These are decisions that need to be made by the hierarchy of the club. I am not going to be disappointed about something I have no control over.
"I have a contract that runs until the end of the season. I am fully prepared to work hard to fulfil that. I have not officially been offered a new contract. What can I do?
"We have had conversations in the past about players leaving the club for nothing. But it is out of my hands."