Might be a female, not entirely sure yet.

I have 4 bag seed of an unknown strain but judging the leaves its probably Indica Dominant. I am test flowering the oldest one since it took off like a rocket when 1 died, another one the growth was super slow for a while, and the others planted are just sprouts, its been about a week now and the preflower looks like its gonna be long and sticking out, so it might just be a female. It hasnt developed but when I get battrys for my cam I will try and figure out how to get a decent shot of it. dont males always start out as little ball looking things?

 

Yes,on a stick,they look like a blow pop sucker.

 

Male branch out at the budsite. If your little preflower is not raised by a stem, it should be female. A male would look like this <---o

< is the node region
--- is the small stem
o would be the preflower.

if there is no --- then it would be female. Of course, mother nature has a way of changing her mind sometimes. I'm sure you'll be alright.

Good luck

 

a males first flowers should be fully formed at 14 days (Source Ask Ed. CC Mag). if it takes longer its probably a female. At 7 days it's probably imposible to tell for sure.