I now have proof.
Here's a picture of me at 20 weeks this time.

(Sorry about the camera-in-front-of-the-face thing. I only have one good spot in this house to take a self-portrait, and I don't have much room for angling.)
And here's a picture of me at 20 weeks with Teyla.

NOW DO YOU BELIEVE ME?
I really must have done something in the last two years to offend my abdominal muscles. Or maybe they are just union workers. "Sorry lady. It's our break. We'll catch you after the holiday."
I wrote more about being 20 weeks pregnant -- halfway! -- at 5 Minutes for Parenting today. See you there.