Shaw with inflating belly??

i am sorry but i have not seen and can not find the trailer leaked or otherwise were it is said that shaw's belly is inflating on screen.....depicting the trailers as we all do splice by splice i dont see this stil. I do see a scene where halloway is on the corner of a bed with his head in his hands presumably from being infected at some point if you draw conclusions from the other scenes of the trailer and if you look closely you can see who i guess we are going to assume is shaw's leg in the bed with him, but trailers or to mislead and are for forshadowing....based off the scenes where shaw is on the med lab table it does not look like she is having a c section or anything close to it. it looks like someone is trying to put that worm thing in her not take it out....if someone can please post or send the link with this trailer of her belly inflating it would really shed some light on my theories....thanks!!1