From BabyCenter dot com:
Your baby now weighs about 2 1/2 pounds (like a butternut squash) and is a tad over 15 inches long from head to heel. His muscles and lungs are continuing to mature, and his head is growing bigger to make room for his developing brain. To meet his increasing nutritional demands, you'll need plenty of protein, vitamins C, folic acid, and iron. And because his bones are soaking up lots of calcium, be sure to drink your milk (or find another good source of calcium, such as cheese, yogurt, or enriched orange juice). This trimester, about 250 milligrams of calcium are deposited in your baby's hardening skeleton each day.
He's alive and kicking, that's for sure! I suppose the kicks have died down slightly, but I can only presume that's because he's running out of room in there. He kicks the most when I'm sitting down, and also when I'm reading in bed. It's fun to watch my book go up and down, but distracts from the story (in a good way)! I can't believe that I'm in the third trimester already.
Regarding the vitmains, I am concerned about getting enough Iron, and it's not in my vitamins because it, um, well, I don't want to get too personal, but let's just say it creates some issues. And spinach lately makes me want to vomit. So, any suggestions on how to get s'more iron into my diet?