Katherine Heigl, star of Knocked Up, is knocked up—but don't worry, Seth Rogan isn't the dad. Heigl and her musician husband of eight years, Josh Kelley, told People that they are excited to announce that Heigl is pregnant with a baby boy who will join the family of four, including older sisters Naleigh and Adelaide.

The Kelley clan is thrilled to announce that we are expecting a third addition to our family. Naleigh and Adelaide could not be more excited to welcome their new sibling into the fold and Josh and I are overflowing with joy and gratitude.

This is an incredibly exciting time for us filled with hope, anticipation, and hormones. Well, only I’m filled with hormones, but everyone in the family gets to enjoy them. We couldn’t be more excited to be able to finally share this news with our fans and are looking forward to continuing to share the journey with you all. xoxo, Katie and Josh.