The left-back has been in his best form of the season in recent weeks, and the Gills are unbeaten in six matches going into the Wembley clash.
Nutter briefly lost his place to on-loan Arsenal man Rene Steer earlier in the season, but he feels he is getting back to his best.
"I feel like I've been doing ok and I feel the team's playing well," he said. "We've not lost for five or six games now, so we've been doing alright.
"If I can be part of that and do well myself it's a bonus but hopefully everyone can have a good game (on Saturday), we can have 11 people get man of the match and go up because that's the most important thing."