The Swansea City midfielder believes that the Swans position needs to be capitalised on and with three games left he is eyeing up the necessary results to ensure that the team end the season in the play off positions they have occupied since before Christmas.
"You don't get many chances," Pratley told the BBC's Sport Wales programme.
"Many people in their careers don't win league or get titles but we were lucky enough to win League One and now it's a chance for us to go on and get into the Premier League.
"In our careers, which are short in football, this opportunity doesn't come around every year.
"We can't put too much pressure on ourselves otherwise we won't perform how we want to," said Pratley.
"The only way you can put it right is by going out on Saturday and getting the three points.
"If you get the three points on Saturday, it's two more games to go and hopefully we can get in there.
"There's a big prize at the end of it and it's in our hands.
"If we win the next six games, we are in the Premier League."