The reason is to get a notification it’s coming. The reason is because I’m so fried surviving, I don’t have the mental energy to spend on calculating the due date and then changing it by a day due to trends I’d also have to track. I barely remember to log it in an app, there’s no way I’m logging it on a calendar, and then keeping track of that paper for multiple months or years to track trends. bleeding through my pants at work is worse to me than the spyware. Being a woman is hard enough. Blame the Spyware, not the women.