Worried about my dog and baby

Ever since I've become pregnant, one of my dogs has started acting out. Chewing up everything, biting (playfully) with people, jumping on people, and just not listening to anything I say. I've been having to crate him more because he has been tearing up the house a lot and only does this when my husband is at work, which is over 12 hours 6 days a week. My concern is that as I get bigger, and once the baby is here, I am going to have a really difficult time with him. He's still a puppy himself, almost 2, and he seems to be reverting back to his 4 lb puppy self, except he is now over 60 lbs. With how he is acting, I wouldn't trust him to even sniff our baby. I got a fake baby doll, and he immediately started chewing on it 😱 it's hard because my husband just doesn't get it,he behaves well for him. But he's already stressing me out so much and I'm the one that'll be stuck caring for him along with a newborn. I've been trying to give him more attention, and take him out more. When I take him on walks, he pulls me so hard that I've had to stop. He's becoming a nightmare and I don't know what to do 😔 I've just heard stories of dogs becoming aggressive and people needing to rehome their pups because of this. Anyone have a similar experience that ended positively?