Okay - I'll answer this one instead of the one in General Discussion - just wanted to make sure you'd see whichever one you wanted to stick with.
Is her weight holding w/out the soft food or is she losing weight? What exactly are you feeding her brand wise? She is pretty tiny - so it's pretty crucial to be sure she's getting enough. When Marcel was that size, I was feeding him 4 small meals a day. You could def. try a different type of soft food if you feel she isn't getting enough.
There is nothing wrong, per se, with feeding just dry kibble - it sort of all depends, at this point anyways, on how her growth is progressing. She sure looks like a cutie pie in your avatar!