How far along? 17 weeks.
Size of baby: The size of an onion; a little over 5 inches and just under 6 ounces. (Side note: the measurements up to 20 weeks are from "crown to rump"; after 20 weeks, the measurements will include baby's legs as well.)
Sleep: Things are going just dandy in this department. The random dreams continue to be a nightly occurrence. 
Total weight gain: +5.5 pounds.
Unglamorous body changes: I have a ton of blackheads this week. Also (gentlemen, don't read this), the veins in my chest actually protrude from the surface of the skin, making the ladies feel all sorts of lumpy and deformed. 
Best moment this week: Halloween fell on a short school day this year! And I didn't have to go to work today! (It's still a teacher work day, where we have to spend at least 3 hours getting report cards ready. I've already spent an hour on them so far this morning and I'm sure I have many more to go. But still: let the parents deal with their sugar-high children.)
Movement: I'm not sure if I've been feeing flutterings or if I've just been feeling the process of digestion. Nothing that's made me think, "oh, that's definitely the baby!" 
Maternity clothes: Just the belly band with certain pairs of pants. 
Food cravings/aversions: I may or may not have partaken in quite a bit of candy leftover from my class's Halloween party yesterday. But that was mostly because it was available and delicious and less because I was craving it. Also, right now I really want some clementines. WHY don't we have any?
Symptoms: I don't know if this has been the result of hormones or just being stretched too thin (last week I had training for 3+ hours every single day after school and this week I've been trying to get report cards ready for Parent Teacher conferences), but I've been a bit more moody and weepy this week. My gums also started bleeding after flossing one night and I've had a couple minor nosebleeds as well.
Currently looking forward to: Being done with Parent Teacher Conferences. Before that, finishing report cards. And, I don't know, maybe actually looking pregnant.
Realization of the week: I started looking at baby gear this week (car seats, carriers, cribs, and the like) and got a little panicky about which brands to choose and how pricey everything was. And then it hit me: we've already spent over $20,000 on this baby! What's a few piddling hundred dollars on some of the big ticket items, am I right?
Other tidbits: (Paraphrased) conversation between Jacob and I earlier this week: 
Me (Lifting up my shirt and examining my stomach in the mirror): I'm still not really showing yet.
Jacob: Sure you are! You're sucking in. Let it all hang out.
Me: (Does as instructed.)
Jacob: See? You've got a nice little pooch there.
Me: (Immediately sucks stomach back in.) You should not call it that.