Does steroid injection effect your hormone?

I thought of this because from my personal observation. I find that whenever I have an injection, my period is either missing, late or I have spotted in between periods. I asked my doctor he said that very unlikely since the amount of injection on my is really small. My liver with processed it right away and it won't stay in my body for long enough to even effect my system. What do you think? Does anyone have experienced this? Anyone?