 [ Symptoms ] lower back pain be a sign of pregnancy my lower right side of my back right above my hip it is a constant dull pain but with sharp intense bursts periodically i am a day late on my period right now took a test that showed negative could i still be pregnant [ Disease ] you may be having a facetal joint arthropathy it may have occurred due to an old childhood injury ct scan of the concerned area has to be done use a lumbar brace while the spine is under stress