Well, I'm still speculative and would like to see further confirmation. The only thing I will say it that her tremendous weight gain (before the E! show debuted) would have coincided in time after this pregnancy.
Bingo.. he talks about it in the article... and a lot more I didn't excerpt that is x-rated.
There is several things here in this article that make that period of her life make a lot more sense... the extreme weight gain, all of a sudden being so out of it she could barely do interviews for the show (a Phoenix Fox station had to actually cut off an interview with her for the show she was so incoherrant)...the time-line all fits like a glove.