Also im 16wks, someone just told me I look bigger than yesterday, he said maybe it could be the baby turned, could that possibly have anything to do with the pains?
It could be bloating from gas causing you pain and making you look bigger. Also, as the uterus gets bigger everything is all moved around in there, so gas can reach up in your chest. And your ribs could possibly be moving to accommodate the uterus. That can cause a lot of soreness in your rib cage. Try some gas x to relieve it and if that doesn't work try wearing a looser bra or one without wiring to help with rib pain! If it gets really bad ask your doctor about it.