There's no way to tell at this point. You'll have to wait to take a pregnancy test on Dec. 1.
Since you were using a condom that gives you a great deal of protection, not perfect, but it was very likely she was ovulating on Nov. 15th.
The pill package insert will tell you how long you need to wait to have sex from the beginning of taking your first pill, and usually it's 7-14 days.
On the other hand, women who are first taking birth control pills will usually experience some breast sensitivity and nausea.
On the whole, unlikely she's pregnant.