i was reading a book and she suggested going on all fours when she had rib pain. she said she wanted live on the floor and crawl around once she figure that position out. but you could give it a try and see if it works.
hope you're feeling better soon!
I'm only 11wks 5dys preggers, however, I have been having terrible rib pain as well, though mine is more on and off. And I was talking with one of my friends about it and she said that it was more than likely your uterus shifting or the baby moving around and getting ready to come out. You can take some of the pain away with tylonal, a heating bad/hot water bottel, or a hot bath. All of which do work. However, if that doesn't seem to help any I would recomed calling your doctor and seeing if he/she could give you something that would help releive some of the pain.
I have no idea what you might want to take to ease the pain in your ribs. I would call the triage line, or ask your doc at your next appointment.