Is it possible to be pregnant and keep showing negative on the test? My cycle is btw 30-35 days and now am on day 45 still no period. My breast are kind of sore. My back hurts. I get hungry a lot now and piss 1-2 times an hour. I sometimes feel nauseous but I haven't throw up yet. I smell everything now. I get so tried lately, I barely have strength to do anything. I am on day DPO16. Has anyone experience this??