The Trotters, who return from a two-week break this afternoon, are sitting two points deep in the relegation places. However, with two games in hand over the rest of their relegation rivals, Petrov reminds his side that their fate is in their own hands.
"It was good for us to have a little bit of time off," he said. "Some scores were good for us and some were not.
"It's dependant on us now. We have six more games left and others have four. It is all about us and how we finish the season.
"We have six games in just over three weeks but we don't want look too far ahead. There is an important match tomorrow and then there are games against Aston Villa and Sunderland, but for now we have to think about Swansea."
Bolton are coming off back-to-back defeats against Fulham and Newcastle.