You have at least 2 plants there. When you grow African violets from a leaf, very often you get more than 1 plant, and you have to separate them, and ideally you plant each plant in one pot big enough to grow. What I see from your picture, you have at least 2 plants growing together. Look for the center of the plants (where the leaves are very small and grow out in a circle), and each plant has 1 center, separate each of them and plant each separately in their own pot, big enough for them to grow.
