22, f. and woke up to light pink/red bruising under my right breast. i started nuvaring last month, and had a breast exam. was clear. scared of ibc?

Unrelated: Your Nuva ring has no relationship to accidental discoloration under your right breast. If you had normal exam and in general you are healthy young woman- no worry about breadt cancer. Discoloration under breast could be skin irritatin , fungal infection from sweating, tight bra etc.,Make sure bra fits well ( avoid wires) daily appky lotion after shower. Exercise regullary, eat fresh. Don't smoke!