If you watch the whole press conference you can see he was quite awkward about January transfer questions, and he did say a couple of things that kind of alluded that he might spend... He kind of made it sound like you never know, but he isn't desperately waiting for 1st Jan to acquire someone. Basically if a really good deal comes up, he might spend.
As for Bertrand, Mourinho said he's been injured and wont be back for another week or two. He also said quite categorically he doesn't intend to buy Luke Shaw.