@welshchild Find a trainer ASAP. I’m so sorry this happened. Ensure your dog has a room or half the house or whatever makes sense that he won’t be contacted by the baby. Keep your baby away from the dog.
Look for certifications like APDT(Academy for professional dog trainers)CCPTD (certification council for professional dog trainers) FDM(Family dog Mediator), CDBC (certified dog behavior consultant). These certifications will have websites with trainer directories you can use to find a trainer near you.
Here’s a great Instagram account for a trainer who specializes in dog and baby
https://www.instagram.com/dogmeets_baby?igsh=NHB4NTFvN2g3dmVr
Here’s a great owner trainer who shares dog and baby content
https://www.instagram.com/the_toby_project?igsh=MTJxOTg1MmpzbXc4NA==
Here’s a tiktok account for a trainer that shares a lot of dog body language breakdown videos
https://www.tiktok.com/@fivebyfivek9?_t=8l8gxbFZkdC&_r=1
This will be a lot of management and prevention and a lot of learning how to advocate for your dogs space and show him you will step in to diffuse the tension. Good luck! I’m so sorry this happened. I’m so glad your dog inhibited his correction. If he wanted to hurt your baby he would have. Let’s keep it there and not let anything else happen. Unfortunately without intervention, these behaviors usually escalate if the dog doesn’t feel safe and heard.
Ultimately your dog is either scared or annoyed with your baby. It sounds like he needs more safe baby free areas to relax in. Dogs need lots of sleep too, and often when babies come home, dogs get less sleep just like the humans do. Giving him a quiet place to be will help immensely.