For the millions of women who take hormonal birth control pills, a continued monthly period is part of the deal. It’s been this way since the pill was originally designed in the 1950s, despite monumental advances in general biomedical knowledge of the last six decades. More recent research has even shown that these periods aren’t actually medically necessary, and some don’t classify them as periods at all. Today, newer contraceptive options like intrauterine devices offer a chance at not having periods at all. Still, the pill continues to dominate, comprising 40% of the profits in the U.S. contraceptive market and 25% of contraceptive consumers, and causing millions of unnecessary ‘periods’ along the way. So what gives? Why hasn’t birth control evolved beyond the pseudo-period?