yes its always possible if you had unprotected sex and your late you could be they say its not always a sure thing to take a hpt the first day of your peroid tests like clear blue are normaly on the money cramping can be from the egg attaching itself inside you. i would say try another test in a few days see what that tells you if still a neg. call you gyn and let her know and im sure she can tell you if its something to worry about. also bare in mind that if you did have sex and your having pain in your side you could be having a tube pregnancy which means the egg has attached itself to you tube rather than making its way into where it belongs and that can be a very bad thing so like i siad hold off a few days but if the pain worsens call your doctor asap hope this helps
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?