A long, long time ago I worked for a pharma company that had a very large diagnostics division. hCG tests were their bread and butter. It was proposed more tha

A long, long time ago I worked for a pharma company that had a very large diagnostics division. hCG tests were their bread and butter. It was proposed more than once that the pregnancy testing systems could easily be converted to a conception advisor. The lawyers immediately swooped in and feared that people would use it as a birth control system (e.g. go for it on the days it says you're NOT fertile). The liability was too much for them to take.