I was listening to Russ Par and Olivia Fox this morning and Olivia said that Brandy is indeed pregnant. She also quoted a statement made by Brandy from a recent interview. Brandy said (I'm paraphrasing) that she is very happy that she will be a mother and that it is something she has always wanted to be. The quote was a little longer, but that was the gist of it.
Brandy did not look pregnant at all on 106, so I'm guessing she's only a few months along.