Guardiola remarked: "We started really good, we concede a goal the first time they arrive. They defend so deep and we had the chance at the end to score the goal. Now we move forward.
"I think we didn't play bad except for the last 10 minutes of the first half. They have many players arriving in the box, we had periods of that but we had the chances to score and we didn't."
He continued: “We started really well. We suffered in the last 10 or 15 minutes of the first half. In the second half we were better and scored early. We had the chances we needed to win the game, but unfortunately we couldn't score.
“We created enough. Their defenders were defending so deep so it's difficult to find spaces, but we had the chances.
“I'm not a guy who can predict the future. We've already dropped seven points, which is a lot. But we've struggled a lot for many reasons. We have to take things game by game and see what happens."
On striker Sergio Aguero being taken off early, he said: "Injury. No, I don't know [what it is]."
"All the teams in the Premier League are difficult. [West Ham] make a good first half. yes."
And on goalscorer Foden, Guardiola concluded: "As always he gave us something extra."