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CDC. 2016. Preconception health and health care. U.S. Centers for Disease Control and Prevention. http://www.cdc.gov/preconception/index.htmlOpens a new window [Accessed November 2016]
FDA. 2016. Food safety for moms-to-be. U.S. Food and Drug Administration. http://www.fda.gov/food/resourcesforyou/healtheducators/ucm081785.htmOpens a new window [Accessed November 2016]
Mayo Clinic. 2015. Female fertility: Why lifestyle choices count. http://www.mayoclinic.org/healthy-lifestyle/getting-pregnant/in-depth/female-fertility/art-20045887Opens a new window [Accessed November 2016]
Mayo Clinic. 2014a. Basal body temperature for natural family planning. http://www.mayoclinic.org/tests-procedures/basal-body-temperature/basics/definition/prc-20019978Opens a new window [Accessed November 2016]
Mayo Clinic. 2014b. Cervical mucus method for natural family planning. http://www.mayoclinic.org/tests-procedures/cervical-mucus-method/basics/definition/prc-20013005Opens a new window [Accessed November 2016]
OWH. 2010. Trying to conceive. U.S. Office on Women’s Health. https://www.womenshealth.gov/pregnancy/before-you-get-pregnant/trying-to-conceive.htmlOpens a new window [Accessed November 2016]
