Katharine Dexter McCormick, who contributed the majority of funding for the development of the oral contraceptive pill, was born to Josephine and Wirt Dexter on 27 August 1875 in Dexter, Michigan. After growing up in Chicago, Illinois, she attended the Massachusetts Institute of Technology (MIT), where she graduated in 1904 with a BS in biology. That same year, she married Stanley McCormick, the son of Cyrus McCormick, inventor and manufacturer of the mechanized reaper. Katharine's father was a prominent Chicago lawyer, so this marriage created the accumulation of great wealth and power. Her primary contribution to society was her commitment to reproductive reform.

Plan B is a progestin-only emergency contraceptive pill (ECP) that can be taken within seventy-two hours of unprotected sex in order to prevent an unwanted pregnancy. Plan B was created in response to the United States Food and Drug Administration's (US FDA) 1997 request for new drug applications (NDAs) for a dedicated ECP product, and was approved for sales in the US in 1999. Duramed, a subsidiary of Barr Pharmaceuticals, manufactures Plan B for The Women's Capital Corporation (WCC), which owns the patent for Plan B. This technology is important in part because it expands women's reproductive rights by giving them greater control over their fertility. The mechanism of action of Plan B also raises questions about the moral status of the zygote.

Enovid was the first hormonal birth control pill. G. D. Searle and Company began marketing Enovid as a contraceptive in 1960. The technology was created by the joint efforts of many individuals and organizations, including Margaret Sanger, Katharine McCormick, Gregory Pincus, John Rock, Syntex, S.A. Laboratories, and G.D. Searle and Company Laboratories. Although there were many pieces and contributors to the final product, it was first conceived of and created by Gregory Pincus and Margaret Sanger through the Worcester Foundation in Worcester, Massachusetts, and was distributed by Searle, located in Chicago. This technology is important to the history of embryology because it changed the way people viewed birth control and revolutionized women's birth control methods. There is an extensive literature on the cultural and societal effects of the pill; for example, the effect it had on women's health care and how it changed perceptions of female sexuality.