18. When I was pregnant with my first, and working in a job
that might occasionally require moderately heavy lifting, I was able to opt out of the lifting. As I should have been able to.
I have also seen men (who, in case you hadn't noticed, will NEVER be pregnant themselves) complain bitterly about such special accommodations. I've seen those same men unable to see supplies that are slightly below their line of vision, because it doesn't occur to them to look a little lower.
Anyway, I don't want to be bashing men in general, just idiotic companies like WalMart.
Oh, and it's important to note: I can recall the 1960's when a lot of workplace laws and rules that discriminated against women were justified because, after all, the woman might become pregnant. We apparently haven't made a lot of progress since then.