Doyle admitted next weekend's home clash with Swansea City now falls into the 'must-win' bracket.
He said: "You lose two games, three games, four games. When it is five games, it is a nightmare.
"We probably deservedly got beat, to be honest. We had two chances in the game really. Other than that we huffed and puffed but didn't really look like scoring.
"It is not ideal. We will have to play Swansea at home next week and win that one and that is the only way you can look at it."