Thanks!
I had an ultrasound at my ob today. I guess I don't have placenta previa, but I do have a low lying one. Right now it's very close to the cervix and some of the blood vessels are hitting it, causing the bleeding. Thankfully the tech is confident that the placenta will be out of the way in a week or two and then I can resume normal activity.
She had a hard time measuring the baby, it was very squirmy, but finally managed. She's also about 80% sure that we're having a little boy. The only bad thing about that is dh and I had finally picked out a girl's name, so now it's back to square one.