I'm still new to growing myself, Freiya, but from what I've read on here, and from all the different journals I've looked at, you may just be stressing yourself out a bit. The plants look good to me, and as Medi mentioned, you don't know when their growth spurts are gonna start. It's not about where you start out, but where you end up. Keep giving those lil cuties lots of love, and I'm sure they'll give you plenty of icky sticky, potent buds. Now, I gotta get back to stressing too much over my lil lady!