@fluffyslippersplease
I have a dog and I have two young children. The dog came first.
I'm actually really shocked at how you have been treated on this thread. I don't think it's ok to tell someone that their husband needs to 'get rid of them' when they come on here with concerns. I honestly think some posters just enjoy making people feel shit.
Objectively, I think your concerns are understandable. I think any concerns about the health of your baby are understandable when you are pregnant, particularly after 4 miscarriages.
I personally doubt there is any real risk of infection from the eyes but I think it would be totally reasonable to call the vet and ask their opinion on that.
Honestly, when your baby first arrives it will be in someone's arms constantly. It will be a while before it is crawling around and touching the dog. So for now, I would not worry too much. I would insist that anyone holding the baby washes hands first - this is reasonable in any circumstances, never mind the dog. This can include toddler hands.
I would get a baby gate on your kitchen and then if you have baby on a mat on the floor it can't get close. The mat can be kept clean and away from the dog.
Honestly I don't think it's reasonable to confine an elderly dog to one room, unless it is the room you are in. Dogs are pack animals and need company. I think he dog would find being 'put out' in the conservatory distressing which wouldn't be fair but may also cause you further issues with the dog.
Changing the food a good suggestion from pps. Also recommend cutting out the scraps and seeing if that makes a difference.
All the best x