I missed my depo shot by a month. I was and am still sexually active and I still havent gotten my shot yet due to working alot but I never got my period. Usually I get my period right before I need to get my shot done again but it never came lately ive been getting nauseous and dizzy my boobs have grown and have been feeling very sore... I get lower back pain everyday like you would feel if you were on your period but like I said no blood. Im getting really nervous could I be pregnant or is my body just acting weird because I didnt get my shot?? Help