Birth Control and Bleeding

Max • ☆~Sunshine Way~☆

Hi! So, I've been on the depo-provera shot for about ah Idk, a year now I think, and I get it every three months. Well, I'm supposed to get it this month (not going to) but last month I started randomly bleeding, and it's been getting progressively worse. I'm not sure what to do or what's happening, do any of you??