Haven't had a period since March 10, 2017. I have taken close to 10 urine test (one at the hospital, two at a free women's center and the rest store bought) and all have been negative except one...but im not sure if it was a false positive or an evaporation line. Im so frustrated and confused. I am 27 yrs old, with no kids and i have NEVER missed a period. Any suggestions??