look fine to me. what light are you using. i am on my first grow now. i vegged for about 5 weeks, and was never able to tell. 3 days after 12/12. they showed signs. three was males. you will know when you see the balls. you wont want to believe it. but you will know. i have never seen a male plant in person until few days ago when i had to kill them.
check out the
GROWFAQ lot of info. lots of pic also. being a new grower myself the only advice i am comfortable to share is what i have already fucked up at. and how i gained knowledge. another thing you could do i go here
Marijuana Plants | Marijuana Leaf | Grow Journals and read through journals that are similar to your grow. its where i got all my ideas. start you own journal and put a link in your tag. and while reading other ask question in their thread. and ask them to stop by your journal. the only reason i have any successful plants are from these practices.
o yea check out my grow. have not updated in a while. will tonight. have one plant that in soil hopefully about 2 more weeks.
here a pic of one of the male i had. it took a few days of denial after that pic before i killed it.