The Cobblers moved into the play-off positions with a 2-0 win over Darlington on Saturday and have lost just twice in 17 games to move to within six points of third-placed Bury.
But Sampson said: "I'm not thinking about that at all. I don't ever want to get ahead of myself.
"People were talking about the play-offs probably six or seven games ago when we were nowhere near.
"Let's just worry about consolidating in a play-off position. Maybe we can get further up the table but we're not looking at automatic promotion.
"I think those places may just be beyond us. Notts County have got quite a few games in hand and our aim is to just stay where we are and keep winning games."
Source: Team Talk
Source: Team Talk