Depo Provera IM shot gone possibly wrong...Help!

I recently graduated from nursing school, and allowed a fellow student to give my Depo shot to prevent pregnancy. She did great, aspirated and nothing but air! However, when she pulled out the needle blood SHOT out of my butt. It scared the both of us, because although I've given myself the Depo shot a million times, that had never happened!
Now I am a little panicked, because I am feeling extremely frisky, and the Depo shot usually makes me the COMPLETE opposite. What do you guys think... am I screwed?? Hahaha any opinions are welcome. Thanks guys!!