The 49-year-old saw his team lose 2-1 to Estonia on Friday night, a result which ended their slim Euro 2012 qualification hopes.
"I haven't got a clue (about the future)," said Worthington. "That's the million dollar question.
"A win is what myself and the players wanted. What other people make decisions about is up to them. I'm employed until December 31 and I've enjoyed the role.
"I'm working with a great group of players and you try and make the most of that group. I think over the course of this campaign we have."
The former defender has been in charge since 2007 after spells with Blackpool, Leicester City and Norwich City.