Laxeh

Can not see sex. Female you will see 2 white hairs

I wouldn't top those inner branches. 1 the point in topping the main branch is to give the side branch a chance to grow up closer to the top. 2 it loss like they have alternating nodes which is a sign of maturity and is a little more difficult to work with

Ok well I'm wondering how to prune. Or like top the inner branch nodes? Is those things possible. I've been hearing around it'll bigger the yield. Also my plant may be pre flowering idk. Here's a picture, girl or a boy ?
http://m1272.photobucket.com/albumview/albums/laxeh/marijuana/5325380B-A127-4F47-B0A9-C4A527C3A525-1498-000000AA51D9C98A_zps62eda6a5.jpg.html?o=3&newest=1

If I can help I will! Ask...