"I want what's good for me, but I want what's good for the club because the club has given me everything," he was quoted as saying in several national newspapers.
"I don't want to say: 'Yes, I am signing a new contract' and then in the end I don't end up signing.
"So I will see. Sometimes in my head, I wake up in the morning and think I want to go. Sometimes I think I want to stay. It is a hard decision. It is my future."
Hazard tops the Premier League goal-scoring charts with seven after claiming the opener in the unbeaten Blues' 3-0 win at Southampton on Sunday, while he's also been nominated for the Ballon d'Or.