Taking dydrogesterone tablets for a vague pain in the lower abdomen may be a sign of an approaching menstrual period. Deferiprone is a kind of progestin, used to promote menstruation and the role of birth control: a situation, is delayed menstruation, urine pregnancy test is negative, ultrasound examination of the uterine lining thickening, but menstruation does not come, you can take dextroprogesterone tablets, follow the doctor’s instructions to take, after stopping the drug a few days after the onset of menstruation. In the process of taking the drug appeared in the abdomen hidden pain, may be the menstruation is coming soon to appear a symptom, if the menstruation in the period of taking the drug, you can stop using dydrogesterone tablets to let the menstruation come. Another situation, may be pelvic inflammatory disease, you can go to the hospital for gynecological examination, to see the uterine adnexa there is no pressure pain, in order to treat the symptoms.