Ok im 15 and ive been on the depro vera shot for three years now and I had unprotected sex with pull out method on march 25 this year, I took a pregnancy test yesterday and it was negative. I was put on the shot for indemeteosis even thought I dont have it, anyways I smoke and sum times lately when I smoke I get a headache, also I feel bloated after I eat and I have bad gas and nuasea im have abdomatle pain when I sleep or lay down, since I dont get periods with the shot then I have no idea if ive missed a period. I was wonder what everybody think I should I would appreciate you comments to be mailed to me or just reply thank you cassie kay :(