So tired

I can't seem to wake-up today, I'm dragging...is it the weekend yet? I'm so done with work right now. Not that I can sleep in or anything, my body won't let me anymore. I guess it's preparing me for what's to come. Or could it be the stress of the season, work, Christmas shopping (that I haven't even started) daycare interviews, childbirth education classes (yikes), baptism classes...why would I be tired?