Try to use breast feeding as much as possible, keep the child active and eat healthy!
No smoke or drugs, if he or she wants to run, go with her or him (keeping you active too!) and mrna vaccines are a special category. The others for the historical real pandemics are maybe good to take if she or he is strong enough.
also eat food from farmer shops. And filter your water! It is not good to drink water with toxic chlore in it. (small dosis in water is still not a good choise) use a solar oven for those heating purposes an never give your child apple or microsoft windows. Rather opensource stuff (hardware or software or everything else). And maybe start with a dumb/feature phone first.
Dont sign up for banks if not needed and protect their privacy. Especially in the coming age of ai.