"things you were linking as 'normal risks' were not really comparable."
We are not comparing them except to say that those are also harmful to a fetus, and that you would have severely restrict pregnant women's lives to eliminate them.
"Some were necessary evils and had to be done to earn your income or simply to get to work e.g. Crossing a busy road, doing a stressful job."
Why should work trump a life? Besides, many women don't have to work, as they are financially supported by their partners. So would you say they should not go to their stressful jobs, walking down busy roads inhaling toxic car fumes?
What about women who don't work but still want to walk down busy roads inhaling said toxic fumes? How selfish to take that risk for no reason other than shopping or seeing friends!
"Others had benefits like getting fit e.g. Sport."
Doing sports before pregnancy you are already fit. Skiing for a week when pregnant doesn't make you fit. Ban pregnant women from the slopes?
"Your apparently dispassionate dismissal of that developing child as a 'nothing' without any rights is frankly scary."
I didn't call a fetus "nothing". What is scary here is your intellectual dishonesty, putting in quotation marks a word I have not even used in this thread 
What I said was that the fetus has no rights, and that is fact in the UK and in most other Western countries.
Meanwhile, I am still waiting for you to show where exactly you see evidence of hysteria in my post from 16:06 yesterday. The alternative is to withdraw your insult and apologize.