Nebula has an article on micro-growing, 12-12 from seed. Some guys like to do it in little yogurt cups. You should look that one up and see what those plants look like at different phases of growth. You might find what yours should look like after this many days of 10 hour lights.
If yours doesn't look like that, it may be an auto plant that will grow its veg phase for however many days its genetic tell it to, even if it's only getting 10 hours of light per day. When it's ready to show *whatever*, it will show. To test the theory, switch it to 18 hours of light for the next month. If it starts to change at about 2 months of age, even while getting veg hours of light, it's an auto. And you're still hoping for pistils, not testicles.