Just got back from the fourth sonogram: Joaquín is about two weeks behind Pedro, and has liquid in his stomach. This is bad.

Probably not terribly bad, but bad nontheless. Lorena will probably have to go for more studies this week. It might be an illness, or a malformation. We're hoping for the illness, because malformations are usually much more complicated to get over.

I guess the twins won't be as indistinguishable as we'd previously thought.