Hello there is stil loads of time for them to pack on size its a indica.T his is from the web site succulent buds erupting from a short, thick plant so dont pannic and you still have 50 more days at least to go so be patient i know its hard to sit on your hands i know been there.
How much run off are you getting at this stage you want at least 25% each water/feeding.
How much light are they getting. if you got iphone down load photone it is a light app which is good for getting a rough idea of ppfd you givining to your plants
I'm getting around 700ppfd off an app and run off isn't a hell of a lot and varys on the feed etc. I have to play with my feeding more but had cut it back as it looked over fed