I have pain in my lower abdomen and inner thighs since last one month. I started having these pains 4-5 before my actual period date. I missed my periods and even after 10 days blood pregnancy test was negative and periods had to be induced by medication. After the 1st day of my period from 2nd to 7th day I had no pain. But then again I am experiencing pain from the 8th day till now and it has been 2 weeks from then. The pain is mild, intermittent and generally increases on standing or moving but not always. Sometimes it also occurs while sitting or sleeping. I already have undergone appendicitis surgery. Please help me.