The Potters face West Bromwich Albion this weekend.
"We made a great start after the first few games and everybody is still happy," Pennant told The Sentinel.
"We are playing some good football and we have kind of dominated possession. We have not only played good football, we have created chances and not just sat back.
"We have had a couple of dips in the last couple of games, which is unfortunate, and maybe there has been bit of nervousness."
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