<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing lower abdominal pain, pelvic pain and blood clots during my menstrual periods. I have also been having burning abdominal pain and pain during my pregnancy.  <response>: It sounds like you may have experienced a spontaneous abortion, also known as a miscarriage. Its important that we do a thorough examination to confirm the diagnosis and ensure that there are no underlying reasons for the miscarriage. 