I'm not sure if that was supposed to be sarcastic, but these two people have done more harm to public health, and are responsible for more health dis/mis-information, than pretty much anyone I can think of. (I am a biochemist, no conflict of interest)
As distinct from the retort that “absence of evidence is not evidence of absence”: It can be, if you’ve tried hard enough to gather the evidence and come up short—which is what these guys have done.
https://health.clevelandclinic.org/pregnancy-safe-medication...
While they do list some medicines, note that they also say check with your doctor first.
Okay some don't, particularly North American and Northern/Western European ones.
But mostly, on average, physicians always try to prescribe you something.
https://hsph.harvard.edu/news/using-acetaminophen-during-pre...
https://ehjournal.biomedcentral.com/articles/10.1186/s12940-...