The unknown is scary, but you got this mama! As long as you’re there supporting him and loving him then you’re doing what you need to do. I know it’s hard but try not to scare yourself it’ll just make things harder, take things step by step. I know every person is different but I know people that are autistic and people that have cerebral palsy that live normal lives!
This isn’t really an answer to your question but have you ever explored postpartum anxiety with a professional such as a family doctor. It may be worth while in that you get support around any anxious or fearful thought patterns
I’m sorry you’re going through this, but I would like to imput that everything you said is fixable and being fixed but your biggest fear is Autism ? If it was CP they would know by now. I’m autistic and so is my daughter and she did all this and is perfectly normal. I think you just need to calm down and trust the doctors and that stuff is being done. But please don’t let autism or CP be your biggest fear when they can live normal lives.