From Baby Center:
Your baby's skeleton is changing from soft cartilage to bone, and the umbilical cord — her lifeline to the placenta — is growing stronger and thicker. Your baby weighs 5 ounces now (about as much as a turnip), and she's around 5 inches long from head to bottom. She can move her joints, and her sweat glands are starting to develop.
Are you starting to feel a bit off balance? As your belly grows, your center of gravity changes, so you may begin to occasionally feel a little unsteady on your feet. Try to avoid situations with a high risk of falling. Wear low-heeled shoes to reduce your risk of taking a tumble; trauma to your abdomen could be dangerous for you and your baby. You'll also want to be sure to buckle up when you're in a car — keep the lap portion of the seat belt under your belly, drawn snugly across your hips, and also use the shoulder harness.
Note from Jen:
So, none of the things that Baby Center mentioned seem to be true for me. I am not big enough yet to have balancing issues... although last week when we went over to Eric & Sheree's to play Wii Fit, the Wii asked if I have trouble walking... oh wait, it asked Kenny that! I have perfect balance as evidenced by my all time high score on Wii Fit Tight Rope!
I still haven't gotten much bigger or gained any weight. However, I am pretty sure that I will come back from the 2 weeks in China and just be huge :)
Still haven't felt the baby move yet. Hopefully soon.