Breast pain, not pregnant???

Hey guys. i'm new to this site, and i am extremely nervous. last week i came down with a fever and the flu, and then i got some breast pain. i usually get pain before my period. but i skipped my period with my nuva ring two weeks ago. so back to the breast pain. i took two rite aid brand tests. one invalid, one negative so i threw them in the bag.the next day i looked again, they both showed up positive!! i got freaked out and got an EPT test that came out "not pregnant" still having breast pain though... any advice???