Things change for the worse when katherine discovers she is pregnant with her enemy's child after a one night stand.
Katherine (elena?) confronts the new kid and stefan bleeds out. Katharine has become adept at keeping herself safe, by taking the rational way out of a situation (becoming a vampire to avoid the originals killing her, then using other people to separate her from klaus, living a short time in places and then changing identities, making a home with the salvatores. We first meet katherine pierce through flashbacks to the civil war. In fact, josie saltzman actress kaylee bryant has revealed that classic vampire diaries baddie katherine pierce (nina dobrev) influenced the look and storyline for her take on dark josie.