 [ 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 ] if overdose is suspected contact a poison control center or emergency room immediately us residents can call the us national poison hotline at 1 800 222 1222 canada residents can call a provincial poison control center symptoms of overdose may include irregular heartbeat muscle weakness confusion