The Saints host the Blues at St Maryâ€™s on Saturday with the Argentine boss feeling confident despite winning just twice since he took over from Nigel Adkins in January.
"I think we had a chance to win in every game we have had, like against Everton and Wigan," Pochettino said.
"From all the games, aside from the QPR one which I wasn't really pleased with my team's performance, I did think we were almost able to win all those games.
"We lacked that kind of effectiveness against the smaller side, but overall I am really pleased with my side's performance and how they have been working."
However, Pochettino was not worried about next weekâ€™s meeting with fellow relegation battlers Reading.