There was recently an interview with one of the creators of “How I Met Your Mother” and they were asked whether Sarah would be reprising her role as Stella on the show… Here’s what they had to say!

TVGuide.com: Are we going to see Sarah Chalke again? The Wedding Bride’s supposed to come out.
Bays: The Wedding Bride is set for May! We haven’t explored whether Sarah’s going to be there. … [She's pregnant so] she could actually just be pregnant on the show. That would just make it that much worse for Ted. “Oh, great! She’s pregnant now!”

From TV Guide