Your male is not to big but there are many things to consider than just size. You puppy is not old enough just yet so you have plenty of time to research breeding. Most people would not want to breed to an inexperienced male to begin with. Here are some good articles on breeding for you to read before you make that decision.
To Breed or Not To Breed, Should I breed my dog? Breeding Your Dog Links to the best Breeding & Whelping sites and articles on the net!