Here is a thought....just an IDEA...Haley knew their baby was dead, so brought them Sarah & Eric's baby for a few minutes, took her away, then returned with the news of the death of their child. Thus, Kristen & Brady have NO child, Mickey is the child of one of the other's parents. Dr. Raynor was in the middle of some switching around when Xander & Victor came in. What the heck. Why not a triple or quadruple switcheroo.