I'm 55 days no period since my last period Feb.20,2015 or 22 days delayed in my expected period last month.. My medical test March 26 said I was pregnant but my HPT was negative, I took it april 6 and also my transvaginal utrasound test april 9 was nothing found. And today I'm having leg cramps and easy to be tired. I have also a white milky discharge. please help am I really pregnant