Guys help me!

Ok so I love dogs. Me and my boyfriend have two right now. But I really like big dogs. I have a husky and I want to get a German Shepard or another Golden Retriever next. Well my boyfriends dog is small/medium. My brothers dog (small dog) got my boyfriends dog pregnant. Now my boyfriend wants to keep a puppy. I don’t care that we keep it but now I’m afraid he’s not going to let me have my dog. I’ve always wanted two or three big dogs when we have property and I’m afraid he won’t let me. What do I do? Should I tell him I want another one in the future?