Sure, a lot that happens is silly. This show is a satire and intended to be a spoof! If the story lines were adjusted to be logical we would have a drama. This is comedy.
Bree's fake pregnancy, complete with fork stuck into her belly, is more ridiculous than Susans pregnancy details!
I just sit back and enjoy the nonsense knowing that Cherry is in NO WAY creating logical story lines. That is not the point here.