It is very common to experience back pain, similar to premenstrual cramps, after finishing your course of Deviry (medroxyprogesterone acetate). This happens as your hormone levels drop to trigger your period. You can typically expect your period to start within 3 to 7 days after taking your last tablet, though it can sometimes take up to 10 days. While mild to moderate discomfort is normal, severe or worsening pain is less common. Please try using a warm compress or gentle stretching for relief. If the pain becomes unmanageable or is accompanied by heavy bleeding or fever, it is always a good idea to consult your doctor for a quick evaluation.