I went to the dermatologist the other day and he looked at my head and told me that I should wait six months from now go in and see him and then if I have lost hair then get on propecia. I have a slight receding hairline on the left side of my head and thinner hair up top then I did at age 19 or twenty. I am twenty three. I know I am losing my hair. Should I just order the propecia from this sight and get started or should I wait like he says.