At about 16 weeks people did start to ask me. My answer depends on who it is, lying through my teeth is quickly becoming a second nature skill.
Important people know, close friends... mum, sister. Other than that I just say hell no, my main priority is my health, wouldn't touch them *whistle*...
My family have the same attitude, I left out an invoice for syringes by accident, mum saw.
To this day, the only difference she has seen in me is the sides... I am completely transparent with her. She hates the whole idea of it, but I was explaining PCT, what the hormones do, how often I inject.. all sorts.
So long as you are using, and not being a dick... you have the power to make people realize that steroids are not the devil, and the media bullshit is what has created this stipulation.
Just be the living proof they need to see.