Hi buddy I dont think this is stretching yet if its auto it will stretch when it wants i can see some pistils but this is normal for an auto i would not worry autos tend to have a large burst of growth before flowering though each strain is different so its hard to tel I would hope shes not stretching anyway cause if so shes not going to be a very large plant lol. best of luck anyway buddy i hope she grows nice and large and strong for you