I would like advice about how long you have actually needed to be TTC before you are referred to test for infertility. I have begged and begged my gp to refer me for testing since I was 18 (now 24) as I suffered for 6 years with anorexia and lost my periods, my periods have returned but I have only this year come off of birth control but I have always had it in the back of my mind that I may be infertile.