Ok so I have been on the shot for a little over a year. I hadnt had my period for about a month before I got on (I'm irregular and I realize how stupid that sounded) but just this last week I started cramping BAD. I thought it was constipation but that theory was shot down. Then yesterday I started bleeding. I'm aware of how depo provera is supposed to work so I'm confused. Plus me and my fiance have unprotected sex, no pull out or anything. Could I get pregnant?