I got my period twice last month closer than 23 days apart I keep having light bleeding after sex I'm getting cramps when I'm not on my period some times they feel like contractions my back hurts loss of appetite I failed 3 stoer bought tests I'm afraid to go to the doctor and get turned down again I want some answers if any body can help please do so

There is a good chance it is due to something other than pregnancy. You really will need to see your doctor to be checked out.