What should we do about our dog?

So my husband and I got a dog in March and we both love him very much but he's beggining to be a lot more trouble than he's worth. He refuses to let us potty train him, he rips up his potty pads, barks like someone's murdering him when we try to crate train him, rips up our carpet and is very aggressive with our cat. My husband and I are always arguing because of it and it's starting to really get to me. I'm currently pregnant and our dog adds to the all the stress I already have. I suggested that we sell him to a friend or someone we know and my husband freaked out and said there's no way that's ever happening. Does it make me a horrible person for not wanting him anymore (the dog noth husband)?