I know a lot of bloggers feel pressure to keep up with the other blogs. Have to put out something new everyday, maybe multiple times a day. They get stressed out because, there just isn't enough time or energy to put out content like that, and then their other duties begin to suffer and things just get crazy. There is a way out of this vicous cycle - Moderation!
Depending on what type of blog you write will determine what moderation means to you. Let me just start by using my blog as an example. I post several times a week, probably about 4 times. Mon, Tues, Thur, Fri. I have to do this because of several reasons. I try to make my posts about quality, not quantity. I don't want to overload my readers with too much at one time, and the effort I put into my posts takes a significant amount of time out of my day. If I posted any more than that, my family and household, school and work would suffer.
As for the weekends, I noticed that the blogging world tends to be a little quieter, so posting is less productive for readers at that point because they are out doing other things, and many are just too busy with family and such to be reading blogs. So, I post during the week where I hope I can help the most readers.
This is how I learned to blog in moderation. Blogging shouldn't stress you out. Its supposed to be a fun way to get relief from your everyday life. Do I ever get stressed about it? Of course I do, but I work on learning to control what I call "blogging anxiety" :-)
So how can you learn what your best blogging schedule is? Easy, test your readers. What do they expect, and what do they appreciate the most? Then combine that with what you are able to handle. What fits into your schedule peacefully? Its important to remember that You need to take care of Yourself.
So if your blog is stressing you out, take a step back and re-evaluate and possibly moderate. It may help you fell more comfortable with your schedule.