I'm 19 years old will be 20 in July I was on nuva ring at the beginning of last year but got off after 2 months of using everything was fine until December I missed my period took 5 pregnancy test and the all were negative even took a pregancy test at the hospital and the doctor all negative waited 2 months and went back to the doctor and the test still came out negative and its been 6 months now and I still haven't seen my period I want to know what's going on I want to have a baby but is that possible without having a period I want to know the answers to those 2 questions

Chemical imbalance in body, A infection, and/or a dozen or more other issues. Sorry you will need to go to your doctor for a complete exam to come up with better clues.