The Premier League leaders suffered a last-gasp defeat to the Yorkshire outfit at the Etihad Stadium, falling to Stuart Dallas' injury-time strike, after Ferran Torres had cancelled out the visitors' opener.
However, the defeat marked only our second loss in our last 36 games (with City winning 27 of our last 29) - a feat Guardiola says should not be diminished by one result.
"What happens when you lose games is that you realise how difficult what we have done so far is," he said.
"You realise how difficult it is to win 27 in 29 games.
"We need points still because our opponents can win more points - but we have three finals.
"I have incredible confidence with the guys. Defeat sometimes is necessary to understand what we have done."
Hear Pep's thoughts on the game in part one of his press conference, in the video above...