Hi i need some help with my plant ...its Male or Female :(

[nerdsativa]

the small thing beside the stipule , is that a calyx?

 

[dazzyballz]

Were building a big block shed @ bottom of garden for next year.im trying to tell my uncle to get some windows in...he just wont listen.
hes spent a grand on two l.e.ds and wants to use them i wanna use natural light in veg for months then blackout and flower always get a huge crop if i use sunlight in veg.
how can i get a stubborn old get to listen hes even seen the results using both.

 

[zyggi]

Were building a big block shed @ bottom of garden for next year.im trying to tell my uncle to get some windows in...he just wont listen.
hes spent a grand on two l.e.ds and wants to use them i wanna use natural light in veg for months then blackout and flower always get a huge crop if i use sunlight in veg.
how can i get a stubborn old get to listen hes even seen the results using both.

oh ya u need windows or one in the back and door ..so if u open it plants get a bit of breeze...i have 6 windows in may 3mx4m2m greenhouse

 

[zyggi]

Were building a big block shed @ bottom of garden for next year.im trying to tell my uncle to get some windows in...he just wont listen.
hes spent a grand on two l.e.ds and wants to use them i wanna use natural light in veg for months then blackout and flower always get a huge crop if i use sunlight in veg.
how can i get a stubborn old get to listen hes even seen the results using both.

i think its female

 

[dazzyballz]

i think its female

How can you tell??? theres no pistels or balls in the pic.
i cant see anything but small nodes.