When you say you "work with" several such pregnant women, do you mean they happen to be your colleagues or are they your clients/patients?
Yabvu.
Some complications and ailments aren't visible or they might not have told you about (if you're not a HCP which I hope you aren't).
Just a few, fairly debilitating pregnancy ailments that can still occur in a "low risk" pregnancy, and yes I've had every one on this list:
Pelvic problems- can make it very hard and painful to walk
Recurrent UTIs - pain, incontinence, risk of premature labour
Restless leg syndrome and itchy skin - prevents sleep
Extreme piles - just constant pain, hard to walk, pain on the toilet, blood in your pants
Acid reflux - need I say more
Severe nausea and vomiting
Plus I've had various false alarms like them thinking there might be a heart defect at the 12w scan; a false alarm of amniotic fluid leaking before 30w...
Now I've been told I'm at risk of cord prolapse so it'll be an ambulance if/when I get any cramping, contractions, change in movements or waters leaking.
So please, fuck off. If you're my colleague, I haven't told you any of this. But I'm living in a state of hypervigilance for any of the above symptoms. You have no idea.