I have to say, considering how much training and dancing she does for the show, it's hard to believe this is just a burger baby or period bloat. Apparently, Michelle has taken to twitter to say that no, she is not knocked up with her co-star's baby.
My guess is that she is, and is waiting to release the news until she's got a rock on her finger.
I actually saw a woman last night who was five months pregnant, with a stomach flat as a board. Seriously.