I have had an ultrasound, internal ultrasound, pap test. All negative. But I have intermittent pelvic pain, groin pain and slight pink blood at time?

Difficult question. You are describing a challenging problem, and what is going on with you cannot be determined without a more detailed conversation and examination. Depending on your age and risk factors, additional testing may be required. If you are not satisfied with what your doctor is telling you about your assessment, you may wish to seek a second opinion.