The Spain winger has struggled to make an impact at Stamford Bridge following his £21million switch from Barca in August.
Pedro opted to leave Camp Nou in search of more first-team opportunities, but his arrival has coincided with Chelsea's worst start to a season in 37 years.
Luis Enrique said: "We know what the situation was with Pedro, we understand it, it's logical, he wanted to play more and over the course of a player's career you have to make decisions.
"Perhaps now he might want to change that decision I don't know.
"It's not a question of us missing him, that's what life in football is like."
Despite scoring on his debut against West Brom, Pedro has scored just twice in eight appearances for the Blues.