You do need to get this seen to. There still is a chance it is not ovarian cancer. You could get the cyst out and may be the symptoms would be resolved.
Alex
A bleeding cyst is hemorrhagic which usually goes away on its own. Here is a link about the various types of ovarian cysts - http://ovaryresearch.com/ovarian_cysts.htm.
However, it is concerning that you have a family history of ovarian cancer hence MAY have an increased risk. The BRCA-1, BRCA-2, and Lynch Syndrome are associated with an increased risk for ovarian cancer. Gene testing would need to be done to determine if you have them these gene mutations. Insurance does not necessarily cover the costs of this testing.
In the meantime, please see your primary care doctor or a gynecologist for investigation of this pelvic pain and other symptoms. Hope it is nothing serious!