Germany booked their spot in Brazil next summer with a 3-0 win over Republic of Ireland on Friday night.
Low's current deal is due to expire after the 2014 World Cup and the coach revealed that talks have begun over an extension with German Football Association (DFB).
"It will not happen today and it will not happen tomorrow," Low said.
"It is true we have had a first discussion (with the DFB) and talked about the general parameters and I think we can find an agreement."
"We've always said we'll wait for the qualification and then we'll talk about it.
"Reaching the World Cup is an exciting development and we've thoroughly deserved it."