I’m one of those old model guys that has never had a period in my life so maybe I don’t understand it all. That being said, don’t all women, or pre 1990 versions, have around 13 periods a year starting around 12 yo? Seems to me that by the time you graduate from college you would have an idea about what is coming and how to deal with it.
That sounds about right. Maybe today’s college students get a week off every month to deal with Aunt Flow when she visits.