Meta only cares about ad revenue so could they be researching or have discovered a link between buying trends and links to a woman's cycle?
I can't accept that premise. They'll take any revenue they can get, including reselling that same data to Palantir or to RFK Jr's health department. Did you skip several periods and then suddenly start having them again? Sounds like you've had an illegal abortion. SWAT raid on your home, incoming. And so on.