Someone please help *provera*

Natalie
Need some help! Ok, so in April I took the Depo-provera shot and didn't like the side effects so didn't get my next one in july, I have yet to get my AF (Aunt flow) almost 2 months later, so I asked the dr for something and she gave me Provera. I'm on day 5 now and my ovaries are hurting extremely bad! I have a cyst on the right ovary but idk if it's supposed to hurt this bad. It's also making me super nauseous and sore all over my body. What should I do? Has anyone ever taken provera to get their AF? Or should I not risk it and just go to the E.R?