Clone showing sex HELP

Ok so clone is two weeks old. I took it from my plant in first week of flowering. So here's the deal why are the sex showing already when I'm still on 18/6. Is this any big deal?

clone is as old as mother. should go back into reveg. be patient

Thanks just thought it was weird they just showed up today

same thing is happening to me and after some research I now know that some strains just do this. It will show 2 hairs right through veg but wont go into full blown flowering. My current clones are doing it but it is not because they are genetectily older. I say this because the mother was grown from seed and did exactly the same thing. It is the strain in my opinion. Don't worry about it, just be happy