Natural diapers for big babies?

Cece

We've been using The Honest Co. Diapers and we love them, especially their overnights. Our only problem is that she grows out of them fast, she's 4 months old and is very tall. We're already on size 5 and pretty soon it looks like we'll have to use pull ups.. we've tried Seventh generation, while I liked them when she was younger they run even smaller than honest. Has any one had similar problems, any suggestions?

Update: Honest definitely runs smaller than other brands, especially for longer babies. I've tried parasol and earnest mom which both fit a lot better based on weight, and are much softer.