Relevant:
The typical U.S. woman wants only 2 children. To achieve this goal, she must use contraceptives for roughly 3 decades. (The Alan Guttmacher Institute (AGI), Fulfilling the Promise: Public Policy and U.S. Family Planning Clinics, New York: AGI, 2000).
In the United States alone, 13 million women use hormonal contraception. (Guttmacher Institute . Facts on Contraceptive Use in the United States, June 2010)
Lots more stats: http://peacebyjesus.witnesstoday.org/RevealingStatistics.html#Sec6
Also is the debatable issue on the contribution of hormonal contraception to estrogenic compounds in the water. http://ag.arizona.edu/azwater/awr/july00/feature1.htm
The Pill (oral contraceptives) is an IARC Group 1 carcinogen: “oral contraceptives are carcinogenic to humans” according to the IARC. According to the IARC, “the weight of the evidence suggests a small increase in the relative risk for breast cancer among current and recent users”. The Pill also increases the risk of cervical and liver cancers.
http://en.m.wikipedia.org/wiki/List_of_IARC_Group_1_carcinogens