A Connor Wickham goal ensured Crystal Palace's place in the FA Cup final at Wembley on Sunday.
The Eagles defeated Watford on Sunday at Wembley in the FA Cup semi-final, and Pardew explained to reporters his feelings on signing a new deal.
"I'm not ready to sign yet because the decision I made was that I wouldn't sign it until we're mathematically safe," he said. "We have to keep our focus and ensure the team is ready for three important league games. We need to get the points, and then we can enjoy the cup final."
The South London club enjoyed an impressive start to the campaign but their season fell apart after the new year, and they have won just one game in the league since December 19.
The FA Cup has proved to be a welcome distraction however, with Pardew's men now on the verge of creating history. The Palace boss compared this side to the class of 1990, who were beaten in the final by Manchester United.
"I hope the destiny isn't the same result," the Eagles boss said. "This is a different team with a different spirit, but some of the characteristics are similar."
Pardew was part of the side that lost in the final, so he will be determined to get some kind of revenge on the Red Devils this time round.
Next up for Palace is a huge game at Pardew's old club Newcastle United, and a win would ensure their top flight status for another season.