Studies noting the harms of hormonal birth control are cited below. If approached by a healthcare practitioner about my reasoning for their negative effects on patients:
Van Hylckama Vlieg A, Helmerhorst FM, Vandenbroucke JP, Doggen CJ, Rosendaal FR. The venous thrombotic risk of oral contraceptives, effects of oestrogen dose and progestogen type: results of the MEGA case-control study. BMJ. 2009;339:b2921. Published 2009 Aug 13. doi:10.1136/bmj.b2921
Skovlund CW, Mørch LS, Kessing LV, Lange T, Lidegaard Ø. Association of Hormonal Contraception With Suicide Attempts and Suicides. Am J Psychiatry. 2018;175(4):336-342. doi:10.1176/appi.ajp.2017.17060616
Skovlund CW, Mørch LS, Kessing LV, Lidegaard Ø. Association of Hormonal Contraception With Depression [published correction appears in JAMA Psychiatry. 2017 Jul 1;74(7):764]. JAMA Psychiatry. 2016;73(11):1154-1162. doi:10.1001/jamapsychiatry.2016.2387
Zethraeus N, Dreber A, Ranehill E, et al. A first-choice combined oral contraceptive influences general well-being in healthy women: a double-blind, randomized, placebo-controlled trial. Fertil Steril. 2017;107(5):1238-1245. doi:10.1016/j.fertnstert.2017.02.120