For comparison, Piper is just shy of 6 months and she was 50 lbs about 2 weeks ago. She is 22” tall and 27” around the chest (I just measured her for a coat
). She comes from confirmation lines so I don't expect her to be oversized when full grown. Heightwise that is 24-26”. Her mother was closer to 26”. So I'm guessing she only has a few more inches to full grown. If your bitch is close in age I would think she won't grow a ton, but maybe a couple of inches? I'm no expert though, this is my first puppy, my last girl was a rescue at about 6 months.
Piper's got quite the set of chompers now, I would guess that her teeth are going to be your best "tell" at this age. I'm no age or tooth expert, but I noticed with Piper her puppy teeth were spaced far apart and small, but she is just a mouth full of BIG teeth these days
. Last time I took a critical look at the molars a week or so ago they were not all the way in, but had fully cleared the gum line. How does this all line up with your pup?
I would agree though that Rottweiler doesn't sound right at all. She isn't remotely blocky and if she is 7 months then she is much too small to be mixed with something that is larger than a dobe. If anything it would need to be mixed with something smaller, like a German Pinscher.
She looks so sweet! I can see why you want to scoop her up! Definitely post more pictures once she comes home.