Cassidy Curtis, an animator at PDI/DreamWorks, and his wife, Raquel Coelho, created this charming pixilated short that also serves as a document of a pregnancy. The extensive notes on how they made it are worth reading:
Animating over such a long period of time, using an increasingly pregnant woman as one of your puppets, means basically throwing out everything you might normally do in an animated film. For example, early on, we had this idea that we should wear the same clothes every time, for continuity’s sake. But as Raquel’s pregnancy developed, we soon discovered that the extra effort required to change in and out of our uniforms was going to interfere with the goal of shooting as many frames as possible, and might even prevent us from finishing the project at all. We dialed down the perfectionism, and in the process ended up having a lot more fun with it.
(via A Cup of Jo)