Following Friday's 2-1 defeat to Wales, Levein's men are five points behind Belgium in Group A.
Asked if he may not be able to continue in his role if Scotland were to lose again tomorrow, Levein replied: "I keep getting asked questions about 'what if this happens?' or 'what if that happens?'.
"I'm not prepared at all to enter into that. My job is to prepare the team for the game, they will be doing their absolute best as always and I've got every confidence in the players."
Scotland have won just one of their last six senior international fixtures.