 [ 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 ] its honestly a 5050 shot but when my period was late i was having the worse pain ever in my lower back because my body was preparing my uterus for the period i say if you do not start in about a week take another test