I've caught up to where I "should" be in my NaNoWriMo novel. Day 5 should see me at around 8,335 words (I think it was). I got to 8,739, which means I've officially made up for my lost day.
Writing gets harder as I get further in, closer to the parts of the plot that I'm uncertain about. I'm trying to plan the plot as I go, but as I mentioned last night, oftentimes it takes on something of a life of its own. The bad part of that comes when my inspiration suddenly tapers off, and I don't have an outline to keep me plodding onward. So far that hasn't happened, but I know what it's like. I'm hoping it won't come to it.
If I can keep up with this pace, though, I should be ahead by a decent amount again before too long, which will allow me the luxury of time to use on outlining.