HI ! Good morning. I am Dr Shareef answering your query. If I were your doctor, I would advise you against using a tampon inside the vagina unless pelvic infection has been excluded. I would have gone for a urine blood test like complete blood count, blood sugar, urine routine examination, a serum HCG test (to rule out chances of any un suspected missed pregnancy), and if considered essential after a clinical examination, an ultrasound of the whole abdomen to rule out any other pathology in the abdomen and pelvis. Further management would depend on the clinical findings and reports of the investigations done. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. Wishing you an early recovery. Dr Shareef.