Never have i ever had sore breasts, not before my period or even during. I just had a shorter period than normal, not lighter, only lasted three days. But, i felt horrible during extremely tired, nauseated, and sore breasts like crazy. Then even week after period sore breasts, nausea, tired. Period began on November 19th ended on 21st. Next period should be December 16th. Still nausea, sore breasts, and tired. Have been on Nuvaring for three years. Could i be prego, or what else? Someone help!