FIRST TIME ROTT OWNER.MALE 7 WEEKS GERMAN......
I SEE A LOT OF ROTTS MOSTLY NOT AS BIG AND LARGE AS I HAVE SEEN BEFORE.
HOW DO I KEEP HIM LARGE LOOKING WITH A BIG HEAD. SOMEONE SUGGESTED B12 SHOTS.
The body shape, bone size, structure, 'look' and 'conformation' is a result of a pups' genetics. .... basically, his parents, grandparents and other ancestors. You can't change the shape or size of a pups' head (or any other part of him) with B12 shots, overfeeding, too much exercise or anything else!
Your pup will look something like his parents, and will most likely grow to be similar in size to his dad. However, it's important to remember that Rottweilers are big dogs who grow slowly and don't reach maturity until somewhere around 18 months to 2 years of age. Big males can take even longer, I had a male who didn't 'grow into' his bone structure until he was almost 3 years old. You can't hurry this along, and trying to do so often results in bone/joint problems, heart conditions and more.
My Rottweiler Puppy Growth Chart will give you an idea of the way pups develop and grow, and the time-frame you're looking at. It also gives you ways to estimate your pups eventual weight - but these are only estimates, all pups are different.
The most important thing you can do for your pup to help him reach his maximum potential in terms of growth, and health, is to feed him a premium puppy food. I'd recommend that you check out my Feeding Puppies and Best Puppy Food pages as they have all the tips and advice you need on this subject.
Keeping your puppy healthy and happy are the most important things, and size isn't everything that's for sure. 'Giant' or XL Rottweilers aren't better (and definitely aren't healthier) than the standard, or smaller, ones. I'd also suggest that you take a look at my Rottweiler Breed Standard page as you may find the descriptions interesting.
I hope this helps in some way, and I wish you the very best of luck with your pup. No matter how big he gets, he will be an amazing dog and will love you devotedly. I hope you can appreciate him and enjoy him, and that you'll have a long and rewarding relationship.