I don't think that women cannot or shouldn't do something. I see they don't exactly enjoy to suck it up and do the job regardless of their body needs.
We as a society used to tell boys to „man up“. Now that's frowned upon (and that's good). But now we started to tell girls and women to „man up“ and ignore their cycles. And both are just as bad. At least we should give teenage girls and young-to-middle-age women few extra days off school/work in a month. Scheduling might become a nightmare with irregular cycles though. Dealing with menopause for significant portion of women is awful too. But I've no idea how modern economy could deal. Besides giving them much more lax during that period in life. But on the other hand, if they get same pay, it's quite natural that their colleagues wouldn't be happy about it.