Thats weird they look really young but the last picture looks like a bunch of pollen sacks up front and a bud with hairs in the back.
But like rocketgirl said if they are a few weeks old they can pre-flower with out 12/12. I would post a pic of that last plant from the top or some different angles but it doesn't look good to me from that picture. But I've only been growing a few months.
those balls look bigger than the balls on one of my male plants thats 5 weeks veg and 2 weeks flower old and the plant looks like its only 10 days old!! weird!