On depo-provera have a 27something cyst on left ovary having decent amount of pain at bottom of stomach that moves over to the ovary.what can i do?

It depends: It depends on the type of cyst and whether you mean 2.7 cm (27 mm) or 27 cm. if it is 27 cm surgery is the answer regardless of the type of cyst. Talk to your doctor who ordered the ultrasound about pain management and what if anything needs to be done about the cyst. Sometimes watchful waiting is the best. Hope this helps and you feel better fast.