2. It would give MerDer something positive to focus on. While we've been impressed by how relatively well Meredith and Derek have handled their post-crash problems, it would be nice for them to have something new and positive to focus on (though Zola certainly helps!)
3. Zola would be the cutest big sis ever! Speaking of Zola, the idea of her playing with a little sibling makes us want to melt into a giant pile of goo.
4. She could name the kid after Lexie and make us cry (in a good way). What better way to memorialize Lexie (Chyler Leigh) than to have Mer name a daughter after her? (Or, if it's a son, they could name him for Mark [Eric Dane].)
5. It would cement the theme of growing up. This season seems to be all about the main crop of characters really coming into their own as adults with established careers. While Mer focusing on being a good doctor and mom to Zola gets the point across, having her be pregnant and planning for a growing family would really fit, thematically.
Do you want Mer to be pregnant? Let us know in the comments below.