After unraveling the strange history of pregnancy tests from Piss Prophets to rats to digital tests, it seems the modern pregnancy test offers women more convenience and privacy. But I can point to at least one area where it could directly interfere with womens' civil liberties.
In many states, women wrestlers are required to provide a negative pregnancy test within days or weeks before every match—at the athlete’s time and expense. And according to the World Boxing Association (WBA), “Female boxers shall provide a negative pregnancy test prior to each championship bout in addition to all other medical tests required by the local boxing authorities.”
Such rules could be seen as a gross violation of privacy and a form of sex discrimination. And maybe it's just me, but I'd rather discuss acceptable levels of physical activity with my own doctor instead of the WBA.