Issues on Depo


I just got my Depo shot on June 20th, had sex since then. Both protected with condom, withdrawal, and also without.

I’ve had horrible cramping for the past week, and overall symptoms of getting my period yet I have not seen it?

I tried to look for spotting, but I am unsure. It’s like it has disappeared? I just know that the Depo has fucked my mood up and now my cycle is all fucked up. I heard some women just don’t bleed at all. I highly doubt I’m pregnant because of how effective the Depo is, but is it normal for Birth Control to do this?