> I think the general advice to pregnant women is to generally avoid most/all medications as much as possible as a just in case thing.

I really don’t think that’s true. e.g. having a fever for a prolonged period could endanger the woman and/or the baby and taking Tylenol would be a risk reducer by comparison.

> There are a lot of things that it could be that changed to bring more autism in society.

Also quite possible that there isn’t any more autism in society, just that greater awareness has led to increased diagnoses.