Im 16 years old been on depo for three months now, but I was suppose to get mu next shot august 5th but something came up so I had to wait til the 16th. I had unprotected sex an hour after I got my shot and latley ive experianced headaches and lower back pains two early pregnancy symptoms. My mother recently lost her handicap daughter and being on depo can be dangerous while pregnant..i really dont wanna go through that and im sure my mom couldnt either..no one will help me so please help me