well... from the first pic, it appears it is starting to alternate at the green arrow, and it looks like the alternation of a male is happening, but I can't tell for sure cuz I can't see the nodes above that one...
in the second pic, the pink arrow is pointing to, what I call, the "split" at the node, which is just the way the plant grows, but some people confuse this with being a pistil - hense "a hermie" when a "male" shows his junk...
now the green arrow of this pic is pointing to what could, unfortunately, be balls in the very early stage.
my advice is to look at the plant above where the green arrow is in the first pic to see if you can tell the alternating pattern by comparing to pics in my Growing Guide thread
http://www.marijuanapassion.com/forum/showthread.php?t=26820
at any rate... I would let it grow out a little longer till you can deffinitly be sure... as I've mentioned before, a male takes weeks to actually drop his pollen when balls start to show... it takes a while for the sacks to grow out and open up.