I'm having a jabbing, squeezing, sharp pain in my uterus...I'm not pregnant (confirmed by doctor). I've had my period since June 4th. Depo shot given?

Depo side effect? You have a question mark after "Depo shot given". Did you get Depo? If so, frequent bleeding is a common side effect and bleeding/spotting can make you cramp. Use a non-steroid anti-inflammatory pill for cramps. Symptoms should get better over time. If not, see your provider for an exam.