Why is my upper breast feel like it's bruised i just got a cold cravings i had unprotected sex 1-10-15 no period since 9-17-14 what's going on ?

Different issues: You mention multiple different symptoms and there is not enough space to cover all three. Briefly - see an Obgyn to discuss irregular menstrual cycles. There are many options for cycle regulation. Breast pain needs to be evaluated first with a physical exam. Not cold cravings are? If you are having unprotected sex consider seeing a doctor for birth control and STD testing.