I've definitely been having a tough time with my own writing lately! One reason, certainly, is the uncertainty surrounding our future. On February 1st, we found out that about half the department my husband works in will be laid off before the end of the month. The very next day, we received a counter-offer on the 100+ year old farm house that we would have taken in a heartbeat, but can't until we know what's going on with the job. If he is laid off, the chances are pretty high that we would have to move, probably out west somewhere, to find a job in his field.
Of course, I know a professional writer would sit down and crank out words short of (perhaps even in spite of) a personal tragedy, but I do have one other issue, which may be closer to true writer's block. I have been experimenting with my writing a bit, and have found lots of things that don't work. I have discovered about myself that I don't write well if I try to plot in advance... in fact, I kind of don't write at all. This is especially true if I'm trying to follow the suggestions in how-to books on writing publishable novels!
For now, it seems, I will stick with what works: I start with a few strong characters and an interesting situation, and then follow them around and see what happens. It sounds really strange, even to me, but it is apparently the way I write.