What Causes Headache On Having Depo Shot And On Adderall For Migraine?

I have been on adderall Rx (10mg) for almost a year and have never experienced headaches. I got the depo Provera shot a few weeks ago and I have noticed that I get migraines every night when my adderall wears off now, however I won't experience the headaches when I don't take the adderall. I've looked into drug interactions between the two and haven't found any. I need the adderall to focus at school however I can't stand these daily migraines. What should I do?