I am 15 and have been on the depo provera injection since febuary this year and i am due to have it renewed on 16/04/13 which i will no do though, this is my first time getting it, but i have now been on my period for 3 weeks. I am getting pretty worried now. I cannot tell my mum and i am not sure whether to go back to the clinic in case they have to do an examination or that they are going to have to tell my mum. WHat should i do and if i go to the nurse what will they do or prescribe me?