Thanks for the query.
You better undergo ultrasound
once, to rule out the possibilities like pelvic inflammatory disease
, ovarian cysts etc.
As you underwent abdominal surgery
, sometimes adhesions can also give pain.
Though you are having family history, all members in the family may not get the malignancy.
But better to rule out the possibility.
So after getting appointment with your doctor go for the recommended tests. Meanwhile you can take analgesics to get pain relief.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429