I HATE my dog 😭

First off, he was the perfect puppy his first 6 months of life! I seriously thought we were the luckiest. Potty trained within 2 weeks, slept through the night, hardly whined AND hardly chewed on anything he wasn’t supposed to. Then I got pregnant and ever since then he has gone backwards. He is so scared of everything, eats any blanket or dog bed he comes in contact with, he pees and bites us. We can’t trim his nails, brush his coat, vacuum, or anything that upsets him otherwise he will get aggressive/pee out of fear. When he is in his mood, he snarls his teeth and looks like he will bite if we don’t leave him alone. He doesn’t listen, and I am convinced he doesn’t like me as well. If my husband is standing up, he won’t listen to his commands. Only if he is sitting down. He gets excited when my husband is around, but pays no mind to me. But of course I am okay with that since I can’t even stand to look at him. I am really worried about how he will do with the baby. He has been around a 2 year old and a newborn before, he does well. He doesn’t jump and he honestly seems to thrive when around other dogs/children. However, when he has his anxiety moments that turn to aggression is the only thing I am worried about. This is more of a vent than anything but I know most people are absolute dog lovers. He was adopted from the shelter and the shelter neutered him at 2 months. Sometimes I wonder if that’s why he is so anxious.

Side note - my husband is away for work a good half of the week. I work from home and handle the dog 24/7, I feel like this might be why my dog gets excited for my husband/not as excited with me.