I am fairly new to growing, myself, yet I grow a lot of plants aside from cannabis, so I know about the natural growth of plants. I am currently on my first plant, as well, and it is actually at this stage in growth. I'm not sure if it is the angle the photo is at, but your plant looks kind of small. I woke up one morning and mine was 3 inches tall. Later last night they were at almost 5 inches. Try giving it more light. The light I'm using is just a simple 1650 lumen flourescent bulb in my closet, and its working wonders. Or raise your light a little. This is only if you want vertical growth so soon. I wanted my plants to be kind of tall, so my light is about 5 feet away from my plants.