Looks just like mine...at around 2 weeks. I've found that I kept my lights too high off the plant forcing them to stretch real tall and skinny. I was also using normal lightbulbs. I'd figure after 2 weeks of 24/7 light, I would get more "fill in" growth. Just switched to Flourescent bulbs...around 3600 lumens worth. Hopefully some change soon
That's a great looking seedling man. You've got a second node showing and the little lady, (I hope), is looking healthy. If you're using a florescent, keep that light about 4 inches from the top of the plant to keep your distance between nodes as short as possible. As soon as the plant is large enough to take a 4 inch cutting from, use the cutting to sex the plant. That will save you some time and the plant some stress.
whats up bongzilla420. like mutt said you have another month or so before you start flowering. yup when you see pre flowers turn your light to 12/12. if you have any problems before then just ask. we are here to help in any way we can.