How far along? 20 weeks 1 day. Halfway there!
Size of baby: The size (length?) of a banana, six and a half inches long and 10.2 ounces or so.
Sleep: I fall asleep really easily but I've been having a hard time waking up and getting out of bed this week. Sometimes my dreams make me feel unrested. Like the time I dreamt Jacob and I decided to jump off a building onto a mattress at this adventure place but our guide made us miss the mattress. And it was only after we landed spread eagle on the ground that I started to think this might not have been the best idea, what with being pregnant and all.
Total weight gain: I think about +8 from pre-pregnancy, +12 from lowest weight to now. (Really, I ought to just pick one "starting weight" and stick with it.)
Unglamorous body changes: My face has been a bit more oily this week.
Best moment this week: So many to choose from! Jacob felt the baby kick this week (more on that below), I announced to my class that we're having a baby, and we found out that we're having a girl! More importantly, everything is developing normally and she's growing on schedule.
Movement: On Sunday I was pretty sure I felt the baby move from the outside, but of course Jacob was at work so he wasn't able to experience it. Then on Wednesday I felt her moving around again and instructed Jacob to put his hand on my stomach. Nothing happened for a while, but then she made a strong kick (or possibly a punch; I can't differentiate these things yet) and Jacob announced that he was able to feel it. He had the biggest smile on his face which may have made my heart melt out of my eyes a little bit.
Maternity clothes: I set the maternity pants aside for now and just wore the belly band a couple times this week. I still have one pair of work pants and several pairs of jeans I can button. 
Food cravings/aversions: Nothing in particular.
Symptoms: This has been ongoing for a while, but I don't think I've mentioned this one yet. I seem to have an excess of saliva and I often catch myself spraying as I read aloud to my class. Embarrassing. At least none of my students have called me out on it yet. Unrelated to pregnancy, I'm getting a cold and last night my throat started getting sore. Noooooooo!
Currently looking forward to: Visiting Jacob's family in Arizona for Thanksgiving! Also, attending my niece's one year birthday party later today.
Realization of the week: We have been so incredibly blessed. The fact that we were able to pay for an IVF cycle, and then to have it work on the first try, is nothing short of miraculous. Knowing that our baby girl is developing healthily is another blessing. I went to a Relief Society activity this week and sat at a table with another woman who was rocking her 8 month old baby to sleep. A year prior, such a scene would have made me go home and bawl. Now, it's an image of something I have to look forward to. Is this really my life? Sometimes it just feels like a happy dream. 
Other tidbits: When I told my class I was having a baby, a couple students weren't sure whether they should believe me. One of my boys raised his hand and said, "Uh . . . you don't look like you're having a baby." Another girl said, "Are you joking about having a baby?" I probably could've waited to tell my class until I started showing more obviously, but I wanted them to vote if they thought the baby would be a boy or a girl. Two-thirds of the class voted "boy". And even as it is, one girl asked, "Why didn't you tell us earlier?" So there you have it.