Gomes saved two penalties from Darren Bent but still ended up on the wrong side of a 3-1 scoreline with the former Spurs striker being successful from the spot on one occasion.
He told the club's official website: "We have semi-final coming up and then a couple of great games so we have to keep going and stay positive."
He added: "I've never faced three penalties in a game. It was a difficult moment and I just wanted to do my best because if I saved the penalties, we stayed in the game.
"Unfortunately, they scored a very good goal after 85 minutes and that was enough. It's only better for me if we win the game, that's all that matters."