Would you buy a puppy without hubbys consent?

My husband didn't want a dog. For years. He finally changed his mind after months of me begging but wants me to wait until April 2018. I found a beautiful tiny maltipoo that I want. But he refuses. I don't think it's fair. When I said I wanted kids, he originally said yes. Then changed his mind and that was that. No if ands or buts. I got played out and now I won't be having any kids with him. And now that I want a dog, I don't think it's fair that he's trying to dictate that as well. He's not a controlling person and he's usually really understanding But when it comes to pets and kids he is very headstrong. Idk what to do. Here's the pup I want...

I don't want to wait...and lose my chance of buying him. ☹️

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